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Finding the Fourth Proportional to 7,240.10, 10,860.15 and 2,310.10

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Solution

The fourth proportional to 7,240.10, 10,860.15 and 2,310.10 is: 3,465.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.10 : 10,860.15 = 2,310.10 : x
  2. Step 2: Convert to fraction form
    7,240.10/10,860.15 = 2,310.10/x
  3. Step 3: Cross multiply
    7,240.10x = 10,860.15 × 2,310.10
  4. Step 4: Simplify right side
    7,240.10x = 25,088,032.52
  5. Step 5: Solve for x
    x = 25,088,032.52/7,240.10
  6. Step 6: Final answer
    x = 3,465.15

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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.