Home / 1,726.60-2,587.34-1,268.36

Finding the Fourth Proportional to 1,726.60, 2,587.34 and 1,268.36

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Solution

The fourth proportional to 1,726.60, 2,587.34 and 1,268.36 is: 1,900.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,726.60 : 2,587.34 = 1,268.36 : x
  2. Step 2: Convert to fraction form
    1,726.60/2,587.34 = 1,268.36/x
  3. Step 3: Cross multiply
    1,726.60x = 2,587.34 × 1,268.36
  4. Step 4: Simplify right side
    1,726.60x = 3,281,678.56
  5. Step 5: Solve for x
    x = 3,281,678.56/1,726.60
  6. Step 6: Final answer
    x = 1,900.66

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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.