Home / 1,486.19-2,050.97-823.02

Finding the Fourth Proportional to 1,486.19, 2,050.97 and 823.02

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Solution

The fourth proportional to 1,486.19, 2,050.97 and 823.02 is: 1,135.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.19 : 2,050.97 = 823.02 : x
  2. Step 2: Convert to fraction form
    1,486.19/2,050.97 = 823.02/x
  3. Step 3: Cross multiply
    1,486.19x = 2,050.97 × 823.02
  4. Step 4: Simplify right side
    1,486.19x = 1,687,985.21
  5. Step 5: Solve for x
    x = 1,687,985.21/1,486.19
  6. Step 6: Final answer
    x = 1,135.78

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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.