Home / 3,162.44-4,354.26-2,689.40

Finding the Fourth Proportional to 3,162.44, 4,354.26 and 2,689.40

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Solution

The fourth proportional to 3,162.44, 4,354.26 and 2,689.40 is: 3,702.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.44 : 4,354.26 = 2,689.40 : x
  2. Step 2: Convert to fraction form
    3,162.44/4,354.26 = 2,689.40/x
  3. Step 3: Cross multiply
    3,162.44x = 4,354.26 × 2,689.40
  4. Step 4: Simplify right side
    3,162.44x = 11,710,346.84
  5. Step 5: Solve for x
    x = 11,710,346.84/3,162.44
  6. Step 6: Final answer
    x = 3,702.95

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1.5x scale

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.