Home / 3,060.12-4,221.51-2,219.46

Finding the Fourth Proportional to 3,060.12, 4,221.51 and 2,219.46

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Solution

The fourth proportional to 3,060.12, 4,221.51 and 2,219.46 is: 3,061.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.12 : 4,221.51 = 2,219.46 : x
  2. Step 2: Convert to fraction form
    3,060.12/4,221.51 = 2,219.46/x
  3. Step 3: Cross multiply
    3,060.12x = 4,221.51 × 2,219.46
  4. Step 4: Simplify right side
    3,060.12x = 9,369,472.58
  5. Step 5: Solve for x
    x = 9,369,472.58/3,060.12
  6. Step 6: Final answer
    x = 3,061.80

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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.