Home / 5,327.28-7,345.08-4,145.76

Finding the Fourth Proportional to 5,327.28, 7,345.08 and 4,145.76

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Solution

The fourth proportional to 5,327.28, 7,345.08 and 4,145.76 is: 5,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,327.28 : 7,345.08 = 4,145.76 : x
  2. Step 2: Convert to fraction form
    5,327.28/7,345.08 = 4,145.76/x
  3. Step 3: Cross multiply
    5,327.28x = 7,345.08 × 4,145.76
  4. Step 4: Simplify right side
    5,327.28x = 30,450,938.86
  5. Step 5: Solve for x
    x = 30,450,938.86/5,327.28
  6. Step 6: Final answer
    x = 5,716.04

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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.