Home / 5,421.57-8,132.36-1,525.97

Finding the Fourth Proportional to 5,421.57, 8,132.36 and 1,525.97

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Solution

The fourth proportional to 5,421.57, 8,132.36 and 1,525.97 is: 2,288.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.57 : 8,132.36 = 1,525.97 : x
  2. Step 2: Convert to fraction form
    5,421.57/8,132.36 = 1,525.97/x
  3. Step 3: Cross multiply
    5,421.57x = 8,132.36 × 1,525.97
  4. Step 4: Simplify right side
    5,421.57x = 12,409,689.10
  5. Step 5: Solve for x
    x = 12,409,689.10/5,421.57
  6. Step 6: Final answer
    x = 2,288.95

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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.