Home / 4,191.20-5,782.56-2,422.16

Finding the Fourth Proportional to 4,191.20, 5,782.56 and 2,422.16

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Solution

The fourth proportional to 4,191.20, 5,782.56 and 2,422.16 is: 3,341.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.20 : 5,782.56 = 2,422.16 : x
  2. Step 2: Convert to fraction form
    4,191.20/5,782.56 = 2,422.16/x
  3. Step 3: Cross multiply
    4,191.20x = 5,782.56 × 2,422.16
  4. Step 4: Simplify right side
    4,191.20x = 14,006,285.53
  5. Step 5: Solve for x
    x = 14,006,285.53/4,191.20
  6. Step 6: Final answer
    x = 3,341.83

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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.