Home / 2,691.15-3,713.37-1,511.98

Finding the Fourth Proportional to 2,691.15, 3,713.37 and 1,511.98

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Solution

The fourth proportional to 2,691.15, 3,713.37 and 1,511.98 is: 2,086.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.15 : 3,713.37 = 1,511.98 : x
  2. Step 2: Convert to fraction form
    2,691.15/3,713.37 = 1,511.98/x
  3. Step 3: Cross multiply
    2,691.15x = 3,713.37 × 1,511.98
  4. Step 4: Simplify right side
    2,691.15x = 5,614,541.17
  5. Step 5: Solve for x
    x = 5,614,541.17/2,691.15
  6. Step 6: Final answer
    x = 2,086.30

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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.