Home / 1,481.02-2,043.90-817.93

Finding the Fourth Proportional to 1,481.02, 2,043.90 and 817.93

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Solution

The fourth proportional to 1,481.02, 2,043.90 and 817.93 is: 1,128.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.02 : 2,043.90 = 817.93 : x
  2. Step 2: Convert to fraction form
    1,481.02/2,043.90 = 817.93/x
  3. Step 3: Cross multiply
    1,481.02x = 2,043.90 × 817.93
  4. Step 4: Simplify right side
    1,481.02x = 1,671,767.13
  5. Step 5: Solve for x
    x = 1,671,767.13/1,481.02
  6. Step 6: Final answer
    x = 1,128.79

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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.