Home / 5,487.40-7,562.82-4,290.76

Finding the Fourth Proportional to 5,487.40, 7,562.82 and 4,290.76

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Solution

The fourth proportional to 5,487.40, 7,562.82 and 4,290.76 is: 5,913.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.40 : 7,562.82 = 4,290.76 : x
  2. Step 2: Convert to fraction form
    5,487.40/7,562.82 = 4,290.76/x
  3. Step 3: Cross multiply
    5,487.40x = 7,562.82 × 4,290.76
  4. Step 4: Simplify right side
    5,487.40x = 32,450,245.54
  5. Step 5: Solve for x
    x = 32,450,245.54/5,487.40
  6. Step 6: Final answer
    x = 5,913.59

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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.