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Finding the Fourth Proportional to 2,349.47, 3,524.20 and 618.09

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Solution

The fourth proportional to 2,349.47, 3,524.20 and 618.09 is: 927.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,349.47 : 3,524.20 = 618.09 : x
  2. Step 2: Convert to fraction form
    2,349.47/3,524.20 = 618.09/x
  3. Step 3: Cross multiply
    2,349.47x = 3,524.20 × 618.09
  4. Step 4: Simplify right side
    2,349.47x = 2,178,272.78
  5. Step 5: Solve for x
    x = 2,178,272.78/2,349.47
  6. Step 6: Final answer
    x = 927.13

Related Problems

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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.