Home / 5,785.50-8,677.28-1,625.78

Finding the Fourth Proportional to 5,785.50, 8,677.28 and 1,625.78

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Solution

The fourth proportional to 5,785.50, 8,677.28 and 1,625.78 is: 2,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.50 : 8,677.28 = 1,625.78 : x
  2. Step 2: Convert to fraction form
    5,785.50/8,677.28 = 1,625.78/x
  3. Step 3: Cross multiply
    5,785.50x = 8,677.28 × 1,625.78
  4. Step 4: Simplify right side
    5,785.50x = 14,107,348.28
  5. Step 5: Solve for x
    x = 14,107,348.28/5,785.50
  6. Step 6: Final answer
    x = 2,438.40

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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.