Home / 3,878,555.38-5,352,355.38-2,136,191.30

Finding the Fourth Proportional to 3,878,555.38, 5,352,355.38 and 2,136,191.30

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Solution

The fourth proportional to 3,878,555.38, 5,352,355.38 and 2,136,191.30 is: 2,947,915.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,555.38 : 5,352,355.38 = 2,136,191.30 : x
  2. Step 2: Convert to fraction form
    3,878,555.38/5,352,355.38 = 2,136,191.30/x
  3. Step 3: Cross multiply
    3,878,555.38x = 5,352,355.38 × 2,136,191.30
  4. Step 4: Simplify right side
    3,878,555.38x = 11,433,654,997,264.19
  5. Step 5: Solve for x
    x = 11,433,654,997,264.19/3,878,555.38
  6. Step 6: Final answer
    x = 2,947,915.88

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.