Home / 2,101.80-3,153.12-1,060.98

Finding the Fourth Proportional to 2,101.80, 3,153.12 and 1,060.98

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Solution

The fourth proportional to 2,101.80, 3,153.12 and 1,060.98 is: 1,591.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.80 : 3,153.12 = 1,060.98 : x
  2. Step 2: Convert to fraction form
    2,101.80/3,153.12 = 1,060.98/x
  3. Step 3: Cross multiply
    2,101.80x = 3,153.12 × 1,060.98
  4. Step 4: Simplify right side
    2,101.80x = 3,345,397.26
  5. Step 5: Solve for x
    x = 3,345,397.26/2,101.80
  6. Step 6: Final answer
    x = 1,591.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.