Home / 1,929.03-2,663.60-1,781.61

Finding the Fourth Proportional to 1,929.03, 2,663.60 and 1,781.61

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Solution

The fourth proportional to 1,929.03, 2,663.60 and 1,781.61 is: 2,460.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.03 : 2,663.60 = 1,781.61 : x
  2. Step 2: Convert to fraction form
    1,929.03/2,663.60 = 1,781.61/x
  3. Step 3: Cross multiply
    1,929.03x = 2,663.60 × 1,781.61
  4. Step 4: Simplify right side
    1,929.03x = 4,745,496.40
  5. Step 5: Solve for x
    x = 4,745,496.40/1,929.03
  6. Step 6: Final answer
    x = 2,460.04

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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.