Home / 1,326.38-1,828.79-1,146.60

Finding the Fourth Proportional to 1,326.38, 1,828.79 and 1,146.60

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Solution

The fourth proportional to 1,326.38, 1,828.79 and 1,146.60 is: 1,580.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326.38 : 1,828.79 = 1,146.60 : x
  2. Step 2: Convert to fraction form
    1,326.38/1,828.79 = 1,146.60/x
  3. Step 3: Cross multiply
    1,326.38x = 1,828.79 × 1,146.60
  4. Step 4: Simplify right side
    1,326.38x = 2,096,890.61
  5. Step 5: Solve for x
    x = 2,096,890.61/1,326.38
  6. Step 6: Final answer
    x = 1,580.91

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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.