Home / 5,461.27-8,191.10-2,687.20

Finding the Fourth Proportional to 5,461.27, 8,191.10 and 2,687.20

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Solution

The fourth proportional to 5,461.27, 8,191.10 and 2,687.20 is: 4,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,461.27 : 8,191.10 = 2,687.20 : x
  2. Step 2: Convert to fraction form
    5,461.27/8,191.10 = 2,687.20/x
  3. Step 3: Cross multiply
    5,461.27x = 8,191.10 × 2,687.20
  4. Step 4: Simplify right side
    5,461.27x = 22,011,110.16
  5. Step 5: Solve for x
    x = 22,011,110.16/5,461.27
  6. Step 6: Final answer
    x = 4,030.40

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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.