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Finding the Fourth Proportional to 5,000.42, 7,488.95 and 3,953.39

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Solution

The fourth proportional to 5,000.42, 7,488.95 and 3,953.39 is: 5,920.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,000.42 : 7,488.95 = 3,953.39 : x
  2. Step 2: Convert to fraction form
    5,000.42/7,488.95 = 3,953.39/x
  3. Step 3: Cross multiply
    5,000.42x = 7,488.95 × 3,953.39
  4. Step 4: Simplify right side
    5,000.42x = 29,606,682.83
  5. Step 5: Solve for x
    x = 29,606,682.83/5,000.42
  6. Step 6: Final answer
    x = 5,920.85

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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.