Home / 5,587.85-8,381.77-1,427.86

Finding the Fourth Proportional to 5,587.85, 8,381.77 and 1,427.86

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Solution

The fourth proportional to 5,587.85, 8,381.77 and 1,427.86 is: 2,141.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,587.85 : 8,381.77 = 1,427.86 : x
  2. Step 2: Convert to fraction form
    5,587.85/8,381.77 = 1,427.86/x
  3. Step 3: Cross multiply
    5,587.85x = 8,381.77 × 1,427.86
  4. Step 4: Simplify right side
    5,587.85x = 11,967,990.54
  5. Step 5: Solve for x
    x = 11,967,990.54/5,587.85
  6. Step 6: Final answer
    x = 2,141.79

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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.