Home / 1,540.41-2,127.02-1,042.86

Finding the Fourth Proportional to 1,540.41, 2,127.02 and 1,042.86

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Solution

The fourth proportional to 1,540.41, 2,127.02 and 1,042.86 is: 1,440.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.41 : 2,127.02 = 1,042.86 : x
  2. Step 2: Convert to fraction form
    1,540.41/2,127.02 = 1,042.86/x
  3. Step 3: Cross multiply
    1,540.41x = 2,127.02 × 1,042.86
  4. Step 4: Simplify right side
    1,540.41x = 2,218,184.08
  5. Step 5: Solve for x
    x = 2,218,184.08/1,540.41
  6. Step 6: Final answer
    x = 1,440.00

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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.