Home / 5,422.10-8,132.40-1,724.18

Finding the Fourth Proportional to 5,422.10, 8,132.40 and 1,724.18

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Solution

The fourth proportional to 5,422.10, 8,132.40 and 1,724.18 is: 2,586.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.10 : 8,132.40 = 1,724.18 : x
  2. Step 2: Convert to fraction form
    5,422.10/8,132.40 = 1,724.18/x
  3. Step 3: Cross multiply
    5,422.10x = 8,132.40 × 1,724.18
  4. Step 4: Simplify right side
    5,422.10x = 14,021,680.77
  5. Step 5: Solve for x
    x = 14,021,680.77/5,422.10
  6. Step 6: Final answer
    x = 2,586.03

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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.