Home / 5,500.45-7,590.57-2,982.55

Finding the Fourth Proportional to 5,500.45, 7,590.57 and 2,982.55

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Solution

The fourth proportional to 5,500.45, 7,590.57 and 2,982.55 is: 4,115.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,500.45 : 7,590.57 = 2,982.55 : x
  2. Step 2: Convert to fraction form
    5,500.45/7,590.57 = 2,982.55/x
  3. Step 3: Cross multiply
    5,500.45x = 7,590.57 × 2,982.55
  4. Step 4: Simplify right side
    5,500.45x = 22,639,254.55
  5. Step 5: Solve for x
    x = 22,639,254.55/5,500.45
  6. Step 6: Final answer
    x = 4,115.89

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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.