Home / 1,540.77-2,126.35-1,167.15

Finding the Fourth Proportional to 1,540.77, 2,126.35 and 1,167.15

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Solution

The fourth proportional to 1,540.77, 2,126.35 and 1,167.15 is: 1,610.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.77 : 2,126.35 = 1,167.15 : x
  2. Step 2: Convert to fraction form
    1,540.77/2,126.35 = 1,167.15/x
  3. Step 3: Cross multiply
    1,540.77x = 2,126.35 × 1,167.15
  4. Step 4: Simplify right side
    1,540.77x = 2,481,769.40
  5. Step 5: Solve for x
    x = 2,481,769.40/1,540.77
  6. Step 6: Final answer
    x = 1,610.73

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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.