Home / 2,691.24-4,039.02-1,393.08

Finding the Fourth Proportional to 2,691.24, 4,039.02 and 1,393.08

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Solution

The fourth proportional to 2,691.24, 4,039.02 and 1,393.08 is: 2,090.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.24 : 4,039.02 = 1,393.08 : x
  2. Step 2: Convert to fraction form
    2,691.24/4,039.02 = 1,393.08/x
  3. Step 3: Cross multiply
    2,691.24x = 4,039.02 × 1,393.08
  4. Step 4: Simplify right side
    2,691.24x = 5,626,677.98
  5. Step 5: Solve for x
    x = 5,626,677.98/2,691.24
  6. Step 6: Final answer
    x = 2,090.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.