Home / 1,966.60-2,706.78-1,853.20

Finding the Fourth Proportional to 1,966.60, 2,706.78 and 1,853.20

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Solution

The fourth proportional to 1,966.60, 2,706.78 and 1,853.20 is: 2,550.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.60 : 2,706.78 = 1,853.20 : x
  2. Step 2: Convert to fraction form
    1,966.60/2,706.78 = 1,853.20/x
  3. Step 3: Cross multiply
    1,966.60x = 2,706.78 × 1,853.20
  4. Step 4: Simplify right side
    1,966.60x = 5,016,204.70
  5. Step 5: Solve for x
    x = 5,016,204.70/1,966.60
  6. Step 6: Final answer
    x = 2,550.70

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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.