Home / 4,772.30-7,151.16-2,428.79

Finding the Fourth Proportional to 4,772.30, 7,151.16 and 2,428.79

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Solution

The fourth proportional to 4,772.30, 7,151.16 and 2,428.79 is: 3,639.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,772.30 : 7,151.16 = 2,428.79 : x
  2. Step 2: Convert to fraction form
    4,772.30/7,151.16 = 2,428.79/x
  3. Step 3: Cross multiply
    4,772.30x = 7,151.16 × 2,428.79
  4. Step 4: Simplify right side
    4,772.30x = 17,368,630.14
  5. Step 5: Solve for x
    x = 17,368,630.14/4,772.30
  6. Step 6: Final answer
    x = 3,639.47

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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.