Home / 2,385.56-3,292.02-1,391.24

Finding the Fourth Proportional to 2,385.56, 3,292.02 and 1,391.24

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Solution

The fourth proportional to 2,385.56, 3,292.02 and 1,391.24 is: 1,919.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.56 : 3,292.02 = 1,391.24 : x
  2. Step 2: Convert to fraction form
    2,385.56/3,292.02 = 1,391.24/x
  3. Step 3: Cross multiply
    2,385.56x = 3,292.02 × 1,391.24
  4. Step 4: Simplify right side
    2,385.56x = 4,579,989.90
  5. Step 5: Solve for x
    x = 4,579,989.90/2,385.56
  6. Step 6: Final answer
    x = 1,919.88

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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.