Home / 5,478.27-8,215.01-1,729.11

Finding the Fourth Proportional to 5,478.27, 8,215.01 and 1,729.11

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Solution

The fourth proportional to 5,478.27, 8,215.01 and 1,729.11 is: 2,592.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.27 : 8,215.01 = 1,729.11 : x
  2. Step 2: Convert to fraction form
    5,478.27/8,215.01 = 1,729.11/x
  3. Step 3: Cross multiply
    5,478.27x = 8,215.01 × 1,729.11
  4. Step 4: Simplify right side
    5,478.27x = 14,204,647.30
  5. Step 5: Solve for x
    x = 14,204,647.30/5,478.27
  6. Step 6: Final answer
    x = 2,592.91

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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.