Home / 1,540.10-2,125.23-910.60

Finding the Fourth Proportional to 1,540.10, 2,125.23 and 910.60

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Solution

The fourth proportional to 1,540.10, 2,125.23 and 910.60 is: 1,256.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.10 : 2,125.23 = 910.60 : x
  2. Step 2: Convert to fraction form
    1,540.10/2,125.23 = 910.60/x
  3. Step 3: Cross multiply
    1,540.10x = 2,125.23 × 910.60
  4. Step 4: Simplify right side
    1,540.10x = 1,935,234.44
  5. Step 5: Solve for x
    x = 1,935,234.44/1,540.10
  6. Step 6: Final answer
    x = 1,256.56

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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.