Home / 1,726.40-2,382.81-1,137

Finding the Fourth Proportional to 1,726.40, 2,382.81 and 1,137

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Solution

The fourth proportional to 1,726.40, 2,382.81 and 1,137 is: 1,569.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,726.40 : 2,382.81 = 1,137 : x
  2. Step 2: Convert to fraction form
    1,726.40/2,382.81 = 1,137/x
  3. Step 3: Cross multiply
    1,726.40x = 2,382.81 × 1,137
  4. Step 4: Simplify right side
    1,726.40x = 2,709,254.97
  5. Step 5: Solve for x
    x = 2,709,254.97/1,726.40
  6. Step 6: Final answer
    x = 1,569.31

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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.