Home / 1,480.71-2,042.49-1,283.88

Finding the Fourth Proportional to 1,480.71, 2,042.49 and 1,283.88

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Solution

The fourth proportional to 1,480.71, 2,042.49 and 1,283.88 is: 1,770.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.71 : 2,042.49 = 1,283.88 : x
  2. Step 2: Convert to fraction form
    1,480.71/2,042.49 = 1,283.88/x
  3. Step 3: Cross multiply
    1,480.71x = 2,042.49 × 1,283.88
  4. Step 4: Simplify right side
    1,480.71x = 2,622,312.06
  5. Step 5: Solve for x
    x = 2,622,312.06/1,480.71
  6. Step 6: Final answer
    x = 1,770.98

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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.