Home / 2,331.90-3,218.06-1,269.71

Finding the Fourth Proportional to 2,331.90, 3,218.06 and 1,269.71

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Solution

The fourth proportional to 2,331.90, 3,218.06 and 1,269.71 is: 1,752.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.90 : 3,218.06 = 1,269.71 : x
  2. Step 2: Convert to fraction form
    2,331.90/3,218.06 = 1,269.71/x
  3. Step 3: Cross multiply
    2,331.90x = 3,218.06 × 1,269.71
  4. Step 4: Simplify right side
    2,331.90x = 4,085,980.52
  5. Step 5: Solve for x
    x = 4,085,980.52/2,331.90
  6. Step 6: Final answer
    x = 1,752.21

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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.