Home / 1,331.40-1,836.08-1,016.68

Finding the Fourth Proportional to 1,331.40, 1,836.08 and 1,016.68

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Solution

The fourth proportional to 1,331.40, 1,836.08 and 1,016.68 is: 1,402.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.40 : 1,836.08 = 1,016.68 : x
  2. Step 2: Convert to fraction form
    1,331.40/1,836.08 = 1,016.68/x
  3. Step 3: Cross multiply
    1,331.40x = 1,836.08 × 1,016.68
  4. Step 4: Simplify right side
    1,331.40x = 1,866,705.81
  5. Step 5: Solve for x
    x = 1,866,705.81/1,331.40
  6. Step 6: Final answer
    x = 1,402.06

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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.