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Finding the Fourth Proportional to 4,753.92, 7,131.12 and 1,291.08

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Solution

The fourth proportional to 4,753.92, 7,131.12 and 1,291.08 is: 1,936.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,753.92 : 7,131.12 = 1,291.08 : x
  2. Step 2: Convert to fraction form
    4,753.92/7,131.12 = 1,291.08/x
  3. Step 3: Cross multiply
    4,753.92x = 7,131.12 × 1,291.08
  4. Step 4: Simplify right side
    4,753.92x = 9,206,846.41
  5. Step 5: Solve for x
    x = 9,206,846.41/4,753.92
  6. Step 6: Final answer
    x = 1,936.69

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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.