Home / 3,434.20-5,151.16-2,391.20

Finding the Fourth Proportional to 3,434.20, 5,151.16 and 2,391.20

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Solution

The fourth proportional to 3,434.20, 5,151.16 and 2,391.20 is: 3,586.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,434.20 : 5,151.16 = 2,391.20 : x
  2. Step 2: Convert to fraction form
    3,434.20/5,151.16 = 2,391.20/x
  3. Step 3: Cross multiply
    3,434.20x = 5,151.16 × 2,391.20
  4. Step 4: Simplify right side
    3,434.20x = 12,317,453.79
  5. Step 5: Solve for x
    x = 12,317,453.79/3,434.20
  6. Step 6: Final answer
    x = 3,586.70

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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.