Home / 5,587.18-8,380.76-1,427.19

Finding the Fourth Proportional to 5,587.18, 8,380.76 and 1,427.19

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Solution

The fourth proportional to 5,587.18, 8,380.76 and 1,427.19 is: 2,140.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,587.18 : 8,380.76 = 1,427.19 : x
  2. Step 2: Convert to fraction form
    5,587.18/8,380.76 = 1,427.19/x
  3. Step 3: Cross multiply
    5,587.18x = 8,380.76 × 1,427.19
  4. Step 4: Simplify right side
    5,587.18x = 11,960,936.86
  5. Step 5: Solve for x
    x = 11,960,936.86/5,587.18
  6. Step 6: Final answer
    x = 2,140.78

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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.