Home / 1,929.12-2,663.19-1,508.54

Finding the Fourth Proportional to 1,929.12, 2,663.19 and 1,508.54

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Solution

The fourth proportional to 1,929.12, 2,663.19 and 1,508.54 is: 2,082.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.12 : 2,663.19 = 1,508.54 : x
  2. Step 2: Convert to fraction form
    1,929.12/2,663.19 = 1,508.54/x
  3. Step 3: Cross multiply
    1,929.12x = 2,663.19 × 1,508.54
  4. Step 4: Simplify right side
    1,929.12x = 4,017,515.33
  5. Step 5: Solve for x
    x = 4,017,515.33/1,929.12
  6. Step 6: Final answer
    x = 2,082.56

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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.