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Finding the Fourth Proportional to 3,155.82, 4,732.98 and 1,399.86

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Solution

The fourth proportional to 3,155.82, 4,732.98 and 1,399.86 is: 2,099.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.82 : 4,732.98 = 1,399.86 : x
  2. Step 2: Convert to fraction form
    3,155.82/4,732.98 = 1,399.86/x
  3. Step 3: Cross multiply
    3,155.82x = 4,732.98 × 1,399.86
  4. Step 4: Simplify right side
    3,155.82x = 6,625,509.38
  5. Step 5: Solve for x
    x = 6,625,509.38/3,155.82
  6. Step 6: Final answer
    x = 2,099.46

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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.