Home / 1,672.10-2,306.25-1,407.95

Finding the Fourth Proportional to 1,672.10, 2,306.25 and 1,407.95

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Solution

The fourth proportional to 1,672.10, 2,306.25 and 1,407.95 is: 1,941.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.10 : 2,306.25 = 1,407.95 : x
  2. Step 2: Convert to fraction form
    1,672.10/2,306.25 = 1,407.95/x
  3. Step 3: Cross multiply
    1,672.10x = 2,306.25 × 1,407.95
  4. Step 4: Simplify right side
    1,672.10x = 3,247,081.80
  5. Step 5: Solve for x
    x = 3,247,081.80/1,672.10
  6. Step 6: Final answer
    x = 1,941.92

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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.