Home / 1,540.02-2,125.32-910.92

Finding the Fourth Proportional to 1,540.02, 2,125.32 and 910.92

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Solution

The fourth proportional to 1,540.02, 2,125.32 and 910.92 is: 1,257.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.02 : 2,125.32 = 910.92 : x
  2. Step 2: Convert to fraction form
    1,540.02/2,125.32 = 910.92/x
  3. Step 3: Cross multiply
    1,540.02x = 2,125.32 × 910.92
  4. Step 4: Simplify right side
    1,540.02x = 1,935,996.49
  5. Step 5: Solve for x
    x = 1,935,996.49/1,540.02
  6. Step 6: Final answer
    x = 1,257.12

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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.