Home / 2,331.40-3,217.38-1,434.80

Finding the Fourth Proportional to 2,331.40, 3,217.38 and 1,434.80

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Solution

The fourth proportional to 2,331.40, 3,217.38 and 1,434.80 is: 1,980.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.40 : 3,217.38 = 1,434.80 : x
  2. Step 2: Convert to fraction form
    2,331.40/3,217.38 = 1,434.80/x
  3. Step 3: Cross multiply
    2,331.40x = 3,217.38 × 1,434.80
  4. Step 4: Simplify right side
    2,331.40x = 4,616,304.43
  5. Step 5: Solve for x
    x = 4,616,304.43/2,331.40
  6. Step 6: Final answer
    x = 1,980.06

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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.