Home / 5,627.50-8,439.78-1,677.70

Finding the Fourth Proportional to 5,627.50, 8,439.78 and 1,677.70

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Solution

The fourth proportional to 5,627.50, 8,439.78 and 1,677.70 is: 2,516.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.50 : 8,439.78 = 1,677.70 : x
  2. Step 2: Convert to fraction form
    5,627.50/8,439.78 = 1,677.70/x
  3. Step 3: Cross multiply
    5,627.50x = 8,439.78 × 1,677.70
  4. Step 4: Simplify right side
    5,627.50x = 14,159,418.91
  5. Step 5: Solve for x
    x = 14,159,418.91/5,627.50
  6. Step 6: Final answer
    x = 2,516.11

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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.