Home / 2,101.74-3,151.05-1,060.98

Finding the Fourth Proportional to 2,101.74, 3,151.05 and 1,060.98

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Solution

The fourth proportional to 2,101.74, 3,151.05 and 1,060.98 is: 1,590.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.74 : 3,151.05 = 1,060.98 : x
  2. Step 2: Convert to fraction form
    2,101.74/3,151.05 = 1,060.98/x
  3. Step 3: Cross multiply
    2,101.74x = 3,151.05 × 1,060.98
  4. Step 4: Simplify right side
    2,101.74x = 3,343,201.03
  5. Step 5: Solve for x
    x = 3,343,201.03/2,101.74
  6. Step 6: Final answer
    x = 1,590.68

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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.