Home / 4,385.40-6,578.10-3,607.80

Finding the Fourth Proportional to 4,385.40, 6,578.10 and 3,607.80

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Solution

The fourth proportional to 4,385.40, 6,578.10 and 3,607.80 is: 5,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,385.40 : 6,578.10 = 3,607.80 : x
  2. Step 2: Convert to fraction form
    4,385.40/6,578.10 = 3,607.80/x
  3. Step 3: Cross multiply
    4,385.40x = 6,578.10 × 3,607.80
  4. Step 4: Simplify right side
    4,385.40x = 23,732,469.18
  5. Step 5: Solve for x
    x = 23,732,469.18/4,385.40
  6. Step 6: Final answer
    x = 5,411.70

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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.