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Finding the Fourth Proportional to 2,672.95, 4,010.12 and 1,112.46

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Solution

The fourth proportional to 2,672.95, 4,010.12 and 1,112.46 is: 1,668.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.95 : 4,010.12 = 1,112.46 : x
  2. Step 2: Convert to fraction form
    2,672.95/4,010.12 = 1,112.46/x
  3. Step 3: Cross multiply
    2,672.95x = 4,010.12 × 1,112.46
  4. Step 4: Simplify right side
    2,672.95x = 4,461,098.10
  5. Step 5: Solve for x
    x = 4,461,098.10/2,672.95
  6. Step 6: Final answer
    x = 1,668.98

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1.5x scale

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.