Home / 3,211.65-4,432.56-1,952.91

Finding the Fourth Proportional to 3,211.65, 4,432.56 and 1,952.91

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Solution

The fourth proportional to 3,211.65, 4,432.56 and 1,952.91 is: 2,695.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.65 : 4,432.56 = 1,952.91 : x
  2. Step 2: Convert to fraction form
    3,211.65/4,432.56 = 1,952.91/x
  3. Step 3: Cross multiply
    3,211.65x = 4,432.56 × 1,952.91
  4. Step 4: Simplify right side
    3,211.65x = 8,656,390.75
  5. Step 5: Solve for x
    x = 8,656,390.75/3,211.65
  6. Step 6: Final answer
    x = 2,695.31

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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.