Home / 2,077.28-2,866.34-1,291.04

Finding the Fourth Proportional to 2,077.28, 2,866.34 and 1,291.04

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Solution

The fourth proportional to 2,077.28, 2,866.34 and 1,291.04 is: 1,781.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077.28 : 2,866.34 = 1,291.04 : x
  2. Step 2: Convert to fraction form
    2,077.28/2,866.34 = 1,291.04/x
  3. Step 3: Cross multiply
    2,077.28x = 2,866.34 × 1,291.04
  4. Step 4: Simplify right side
    2,077.28x = 3,700,538.81
  5. Step 5: Solve for x
    x = 3,700,538.81/2,077.28
  6. Step 6: Final answer
    x = 1,781.44

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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.