Home / 6,140.10-9,210.15-4,293.30

Finding the Fourth Proportional to 6,140.10, 9,210.15 and 4,293.30

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Solution

The fourth proportional to 6,140.10, 9,210.15 and 4,293.30 is: 6,439.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.10 : 9,210.15 = 4,293.30 : x
  2. Step 2: Convert to fraction form
    6,140.10/9,210.15 = 4,293.30/x
  3. Step 3: Cross multiply
    6,140.10x = 9,210.15 × 4,293.30
  4. Step 4: Simplify right side
    6,140.10x = 39,541,937.00
  5. Step 5: Solve for x
    x = 39,541,937.00/6,140.10
  6. Step 6: Final answer
    x = 6,439.95

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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.