Home / 2,131.40-3,195.02-1,020.53

Finding the Fourth Proportional to 2,131.40, 3,195.02 and 1,020.53

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Solution

The fourth proportional to 2,131.40, 3,195.02 and 1,020.53 is: 1,529.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.40 : 3,195.02 = 1,020.53 : x
  2. Step 2: Convert to fraction form
    2,131.40/3,195.02 = 1,020.53/x
  3. Step 3: Cross multiply
    2,131.40x = 3,195.02 × 1,020.53
  4. Step 4: Simplify right side
    2,131.40x = 3,260,613.76
  5. Step 5: Solve for x
    x = 3,260,613.76/2,131.40
  6. Step 6: Final answer
    x = 1,529.80

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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.