Home / 3,158.79-4,363.55-2,992.71

Finding the Fourth Proportional to 3,158.79, 4,363.55 and 2,992.71

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Solution

The fourth proportional to 3,158.79, 4,363.55 and 2,992.71 is: 4,134.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.79 : 4,363.55 = 2,992.71 : x
  2. Step 2: Convert to fraction form
    3,158.79/4,363.55 = 2,992.71/x
  3. Step 3: Cross multiply
    3,158.79x = 4,363.55 × 2,992.71
  4. Step 4: Simplify right side
    3,158.79x = 13,058,824.76
  5. Step 5: Solve for x
    x = 13,058,824.76/3,158.79
  6. Step 6: Final answer
    x = 4,134.12

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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.