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Finding the Fourth Proportional to 2,672.42, 4,010.07 and 1,113.50

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Solution

The fourth proportional to 2,672.42, 4,010.07 and 1,113.50 is: 1,670.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.42 : 4,010.07 = 1,113.50 : x
  2. Step 2: Convert to fraction form
    2,672.42/4,010.07 = 1,113.50/x
  3. Step 3: Cross multiply
    2,672.42x = 4,010.07 × 1,113.50
  4. Step 4: Simplify right side
    2,672.42x = 4,465,212.95
  5. Step 5: Solve for x
    x = 4,465,212.95/2,672.42
  6. Step 6: Final answer
    x = 1,670.85

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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.