Home / 5,722.90-8,568.15-5,139.70

Finding the Fourth Proportional to 5,722.90, 8,568.15 and 5,139.70

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Solution

The fourth proportional to 5,722.90, 8,568.15 and 5,139.70 is: 7,695.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,722.90 : 8,568.15 = 5,139.70 : x
  2. Step 2: Convert to fraction form
    5,722.90/8,568.15 = 5,139.70/x
  3. Step 3: Cross multiply
    5,722.90x = 8,568.15 × 5,139.70
  4. Step 4: Simplify right side
    5,722.90x = 44,037,720.56
  5. Step 5: Solve for x
    x = 44,037,720.56/5,722.90
  6. Step 6: Final answer
    x = 7,695.00

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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.