Home / 1,686.77-2,517.33-1,575.37

Finding the Fourth Proportional to 1,686.77, 2,517.33 and 1,575.37

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Solution

The fourth proportional to 1,686.77, 2,517.33 and 1,575.37 is: 2,351.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.77 : 2,517.33 = 1,575.37 : x
  2. Step 2: Convert to fraction form
    1,686.77/2,517.33 = 1,575.37/x
  3. Step 3: Cross multiply
    1,686.77x = 2,517.33 × 1,575.37
  4. Step 4: Simplify right side
    1,686.77x = 3,965,726.16
  5. Step 5: Solve for x
    x = 3,965,726.16/1,686.77
  6. Step 6: Final answer
    x = 2,351.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.