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Finding the Fourth Proportional to 5,607.51, 8,411.40 and 3,136.20

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Solution

The fourth proportional to 5,607.51, 8,411.40 and 3,136.20 is: 4,704.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.51 : 8,411.40 = 3,136.20 : x
  2. Step 2: Convert to fraction form
    5,607.51/8,411.40 = 3,136.20/x
  3. Step 3: Cross multiply
    5,607.51x = 8,411.40 × 3,136.20
  4. Step 4: Simplify right side
    5,607.51x = 26,379,832.68
  5. Step 5: Solve for x
    x = 26,379,832.68/5,607.51
  6. Step 6: Final answer
    x = 4,704.38

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.