Home / 1,331.71-1,836.75-1,182.49

Finding the Fourth Proportional to 1,331.71, 1,836.75 and 1,182.49

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Solution

The fourth proportional to 1,331.71, 1,836.75 and 1,182.49 is: 1,630.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.71 : 1,836.75 = 1,182.49 : x
  2. Step 2: Convert to fraction form
    1,331.71/1,836.75 = 1,182.49/x
  3. Step 3: Cross multiply
    1,331.71x = 1,836.75 × 1,182.49
  4. Step 4: Simplify right side
    1,331.71x = 2,171,938.51
  5. Step 5: Solve for x
    x = 2,171,938.51/1,331.71
  6. Step 6: Final answer
    x = 1,630.94

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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.