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Finding the Fourth Proportional to 4,763.39, 7,130.90 and 4,262.81

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Solution

The fourth proportional to 4,763.39, 7,130.90 and 4,262.81 is: 6,381.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,763.39 : 7,130.90 = 4,262.81 : x
  2. Step 2: Convert to fraction form
    4,763.39/7,130.90 = 4,262.81/x
  3. Step 3: Cross multiply
    4,763.39x = 7,130.90 × 4,262.81
  4. Step 4: Simplify right side
    4,763.39x = 30,397,646.83
  5. Step 5: Solve for x
    x = 30,397,646.83/4,763.39
  6. Step 6: Final answer
    x = 6,381.52

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Double scale
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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.