Home / 3,158.90-4,359.22-1,742.71

Finding the Fourth Proportional to 3,158.90, 4,359.22 and 1,742.71

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Solution

The fourth proportional to 3,158.90, 4,359.22 and 1,742.71 is: 2,404.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.90 : 4,359.22 = 1,742.71 : x
  2. Step 2: Convert to fraction form
    3,158.90/4,359.22 = 1,742.71/x
  3. Step 3: Cross multiply
    3,158.90x = 4,359.22 × 1,742.71
  4. Step 4: Simplify right side
    3,158.90x = 7,596,847.57
  5. Step 5: Solve for x
    x = 7,596,847.57/3,158.90
  6. Step 6: Final answer
    x = 2,404.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.