Home / 4,151.28-5,728.92-2,288.40

Finding the Fourth Proportional to 4,151.28, 5,728.92 and 2,288.40

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Solution

The fourth proportional to 4,151.28, 5,728.92 and 2,288.40 is: 3,158.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,151.28 : 5,728.92 = 2,288.40 : x
  2. Step 2: Convert to fraction form
    4,151.28/5,728.92 = 2,288.40/x
  3. Step 3: Cross multiply
    4,151.28x = 5,728.92 × 2,288.40
  4. Step 4: Simplify right side
    4,151.28x = 13,110,060.53
  5. Step 5: Solve for x
    x = 13,110,060.53/4,151.28
  6. Step 6: Final answer
    x = 3,158.08

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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.