Home / 1,229.38-1,698.47-1,044.80

Finding the Fourth Proportional to 1,229.38, 1,698.47 and 1,044.80

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Solution

The fourth proportional to 1,229.38, 1,698.47 and 1,044.80 is: 1,443.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.38 : 1,698.47 = 1,044.80 : x
  2. Step 2: Convert to fraction form
    1,229.38/1,698.47 = 1,044.80/x
  3. Step 3: Cross multiply
    1,229.38x = 1,698.47 × 1,044.80
  4. Step 4: Simplify right side
    1,229.38x = 1,774,561.46
  5. Step 5: Solve for x
    x = 1,774,561.46/1,229.38
  6. Step 6: Final answer
    x = 1,443.46

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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.