Home / 5,427.52-7,484.88-3,860.80

Finding the Fourth Proportional to 5,427.52, 7,484.88 and 3,860.80

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Solution

The fourth proportional to 5,427.52, 7,484.88 and 3,860.80 is: 5,324.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.52 : 7,484.88 = 3,860.80 : x
  2. Step 2: Convert to fraction form
    5,427.52/7,484.88 = 3,860.80/x
  3. Step 3: Cross multiply
    5,427.52x = 7,484.88 × 3,860.80
  4. Step 4: Simplify right side
    5,427.52x = 28,897,624.70
  5. Step 5: Solve for x
    x = 28,897,624.70/5,427.52
  6. Step 6: Final answer
    x = 5,324.28

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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.