Home / 3,715.32-5,127.66-2,318.52

Finding the Fourth Proportional to 3,715.32, 5,127.66 and 2,318.52

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Solution

The fourth proportional to 3,715.32, 5,127.66 and 2,318.52 is: 3,199.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.32 : 5,127.66 = 2,318.52 : x
  2. Step 2: Convert to fraction form
    3,715.32/5,127.66 = 2,318.52/x
  3. Step 3: Cross multiply
    3,715.32x = 5,127.66 × 2,318.52
  4. Step 4: Simplify right side
    3,715.32x = 11,888,582.26
  5. Step 5: Solve for x
    x = 11,888,582.26/3,715.32
  6. Step 6: Final answer
    x = 3,199.88

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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.