Home / 1,507.31-2,080.11-844.15

Finding the Fourth Proportional to 1,507.31, 2,080.11 and 844.15

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Solution

The fourth proportional to 1,507.31, 2,080.11 and 844.15 is: 1,164.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507.31 : 2,080.11 = 844.15 : x
  2. Step 2: Convert to fraction form
    1,507.31/2,080.11 = 844.15/x
  3. Step 3: Cross multiply
    1,507.31x = 2,080.11 × 844.15
  4. Step 4: Simplify right side
    1,507.31x = 1,755,919.66
  5. Step 5: Solve for x
    x = 1,755,919.66/1,507.31
  6. Step 6: Final answer
    x = 1,164.94

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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.