Home / 3,132.09-4,321.08-2,085.93

Finding the Fourth Proportional to 3,132.09, 4,321.08 and 2,085.93

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Solution

The fourth proportional to 3,132.09, 4,321.08 and 2,085.93 is: 2,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.09 : 4,321.08 = 2,085.93 : x
  2. Step 2: Convert to fraction form
    3,132.09/4,321.08 = 2,085.93/x
  3. Step 3: Cross multiply
    3,132.09x = 4,321.08 × 2,085.93
  4. Step 4: Simplify right side
    3,132.09x = 9,013,470.40
  5. Step 5: Solve for x
    x = 9,013,470.40/3,132.09
  6. Step 6: Final answer
    x = 2,877.78

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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.