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Finding the Fourth Proportional to 4,888.62, 7,332.81 and 1,425.90

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Solution

The fourth proportional to 4,888.62, 7,332.81 and 1,425.90 is: 2,138.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,888.62 : 7,332.81 = 1,425.90 : x
  2. Step 2: Convert to fraction form
    4,888.62/7,332.81 = 1,425.90/x
  3. Step 3: Cross multiply
    4,888.62x = 7,332.81 × 1,425.90
  4. Step 4: Simplify right side
    4,888.62x = 10,455,853.78
  5. Step 5: Solve for x
    x = 10,455,853.78/4,888.62
  6. Step 6: Final answer
    x = 2,138.81

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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.