Home / 1,044.30-1,566.37-274.78

Finding the Fourth Proportional to 1,044.30, 1,566.37 and 274.78

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Solution

The fourth proportional to 1,044.30, 1,566.37 and 274.78 is: 412.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.30 : 1,566.37 = 274.78 : x
  2. Step 2: Convert to fraction form
    1,044.30/1,566.37 = 274.78/x
  3. Step 3: Cross multiply
    1,044.30x = 1,566.37 × 274.78
  4. Step 4: Simplify right side
    1,044.30x = 430,407.15
  5. Step 5: Solve for x
    x = 430,407.15/1,044.30
  6. Step 6: Final answer
    x = 412.15

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.