Home / 5,429.46-8,140.20-1,729.55

Finding the Fourth Proportional to 5,429.46, 8,140.20 and 1,729.55

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Solution

The fourth proportional to 5,429.46, 8,140.20 and 1,729.55 is: 2,593.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.46 : 8,140.20 = 1,729.55 : x
  2. Step 2: Convert to fraction form
    5,429.46/8,140.20 = 1,729.55/x
  3. Step 3: Cross multiply
    5,429.46x = 8,140.20 × 1,729.55
  4. Step 4: Simplify right side
    5,429.46x = 14,078,896.77
  5. Step 5: Solve for x
    x = 14,078,896.77/5,429.46
  6. Step 6: Final answer
    x = 2,593.06

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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.