Home / 3,726.45-5,587.65-1,386.36

Finding the Fourth Proportional to 3,726.45, 5,587.65 and 1,386.36

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Solution

The fourth proportional to 3,726.45, 5,587.65 and 1,386.36 is: 2,078.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.45 : 5,587.65 = 1,386.36 : x
  2. Step 2: Convert to fraction form
    3,726.45/5,587.65 = 1,386.36/x
  3. Step 3: Cross multiply
    3,726.45x = 5,587.65 × 1,386.36
  4. Step 4: Simplify right side
    3,726.45x = 7,746,494.45
  5. Step 5: Solve for x
    x = 7,746,494.45/3,726.45
  6. Step 6: Final answer
    x = 2,078.79

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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.