Home / 5,586.80-8,380.20-1,691.40

Finding the Fourth Proportional to 5,586.80, 8,380.20 and 1,691.40

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Solution

The fourth proportional to 5,586.80, 8,380.20 and 1,691.40 is: 2,537.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,586.80 : 8,380.20 = 1,691.40 : x
  2. Step 2: Convert to fraction form
    5,586.80/8,380.20 = 1,691.40/x
  3. Step 3: Cross multiply
    5,586.80x = 8,380.20 × 1,691.40
  4. Step 4: Simplify right side
    5,586.80x = 14,174,270.28
  5. Step 5: Solve for x
    x = 14,174,270.28/5,586.80
  6. Step 6: Final answer
    x = 2,537.10

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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.