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Finding the Fourth Proportional to 1,772.60, 2,672.17 and 1,653.66

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Solution

The fourth proportional to 1,772.60, 2,672.17 and 1,653.66 is: 2,492.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.60 : 2,672.17 = 1,653.66 : x
  2. Step 2: Convert to fraction form
    1,772.60/2,672.17 = 1,653.66/x
  3. Step 3: Cross multiply
    1,772.60x = 2,672.17 × 1,653.66
  4. Step 4: Simplify right side
    1,772.60x = 4,418,860.64
  5. Step 5: Solve for x
    x = 4,418,860.64/1,772.60
  6. Step 6: Final answer
    x = 2,492.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.