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Finding the Fourth Proportional to 2,726.87, 3,762.86 and 1,547.91

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Solution

The fourth proportional to 2,726.87, 3,762.86 and 1,547.91 is: 2,135.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,726.87 : 3,762.86 = 1,547.91 : x
  2. Step 2: Convert to fraction form
    2,726.87/3,762.86 = 1,547.91/x
  3. Step 3: Cross multiply
    2,726.87x = 3,762.86 × 1,547.91
  4. Step 4: Simplify right side
    2,726.87x = 5,824,560.88
  5. Step 5: Solve for x
    x = 5,824,560.88/2,726.87
  6. Step 6: Final answer
    x = 2,135.99

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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.