Home / 4,989.28-7,472.04-4,814.32

Finding the Fourth Proportional to 4,989.28, 7,472.04 and 4,814.32

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Solution

The fourth proportional to 4,989.28, 7,472.04 and 4,814.32 is: 7,210.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.28 : 7,472.04 = 4,814.32 : x
  2. Step 2: Convert to fraction form
    4,989.28/7,472.04 = 4,814.32/x
  3. Step 3: Cross multiply
    4,989.28x = 7,472.04 × 4,814.32
  4. Step 4: Simplify right side
    4,989.28x = 35,972,791.61
  5. Step 5: Solve for x
    x = 35,972,791.61/4,989.28
  6. Step 6: Final answer
    x = 7,210.02

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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.