Home / 5,281.18-7,924.84-2,160.71

Finding the Fourth Proportional to 5,281.18, 7,924.84 and 2,160.71

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Solution

The fourth proportional to 5,281.18, 7,924.84 and 2,160.71 is: 3,242.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.18 : 7,924.84 = 2,160.71 : x
  2. Step 2: Convert to fraction form
    5,281.18/7,924.84 = 2,160.71/x
  3. Step 3: Cross multiply
    5,281.18x = 7,924.84 × 2,160.71
  4. Step 4: Simplify right side
    5,281.18x = 17,123,265.73
  5. Step 5: Solve for x
    x = 17,123,265.73/5,281.18
  6. Step 6: Final answer
    x = 3,242.32

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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.