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Finding the Fourth Proportional to 2,645.53, 3,649.60 and 1,860.04

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Solution

The fourth proportional to 2,645.53, 3,649.60 and 1,860.04 is: 2,565.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.53 : 3,649.60 = 1,860.04 : x
  2. Step 2: Convert to fraction form
    2,645.53/3,649.60 = 1,860.04/x
  3. Step 3: Cross multiply
    2,645.53x = 3,649.60 × 1,860.04
  4. Step 4: Simplify right side
    2,645.53x = 6,788,374.44
  5. Step 5: Solve for x
    x = 6,788,374.44/2,645.53
  6. Step 6: Final answer
    x = 2,565.98

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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.