Home / 5,500.12-7,590.36-3,931.96

Finding the Fourth Proportional to 5,500.12, 7,590.36 and 3,931.96

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Solution

The fourth proportional to 5,500.12, 7,590.36 and 3,931.96 is: 5,426.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,500.12 : 7,590.36 = 3,931.96 : x
  2. Step 2: Convert to fraction form
    5,500.12/7,590.36 = 3,931.96/x
  3. Step 3: Cross multiply
    5,500.12x = 7,590.36 × 3,931.96
  4. Step 4: Simplify right side
    5,500.12x = 29,844,991.91
  5. Step 5: Solve for x
    x = 29,844,991.91/5,500.12
  6. Step 6: Final answer
    x = 5,426.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.