Home / 1,686.18-2,326.51-1,126.27

Finding the Fourth Proportional to 1,686.18, 2,326.51 and 1,126.27

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Solution

The fourth proportional to 1,686.18, 2,326.51 and 1,126.27 is: 1,553.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.18 : 2,326.51 = 1,126.27 : x
  2. Step 2: Convert to fraction form
    1,686.18/2,326.51 = 1,126.27/x
  3. Step 3: Cross multiply
    1,686.18x = 2,326.51 × 1,126.27
  4. Step 4: Simplify right side
    1,686.18x = 2,620,276.40
  5. Step 5: Solve for x
    x = 2,620,276.40/1,686.18
  6. Step 6: Final answer
    x = 1,553.97

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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.