Home / 3,159.12-4,355.02-2,211.98

Finding the Fourth Proportional to 3,159.12, 4,355.02 and 2,211.98

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Solution

The fourth proportional to 3,159.12, 4,355.02 and 2,211.98 is: 3,049.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.12 : 4,355.02 = 2,211.98 : x
  2. Step 2: Convert to fraction form
    3,159.12/4,355.02 = 2,211.98/x
  3. Step 3: Cross multiply
    3,159.12x = 4,355.02 × 2,211.98
  4. Step 4: Simplify right side
    3,159.12x = 9,633,217.14
  5. Step 5: Solve for x
    x = 9,633,217.14/3,159.12
  6. Step 6: Final answer
    x = 3,049.34

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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.