Home / 2,281.13-3,143.31-1,573.19

Finding the Fourth Proportional to 2,281.13, 3,143.31 and 1,573.19

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Solution

The fourth proportional to 2,281.13, 3,143.31 and 1,573.19 is: 2,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.13 : 3,143.31 = 1,573.19 : x
  2. Step 2: Convert to fraction form
    2,281.13/3,143.31 = 1,573.19/x
  3. Step 3: Cross multiply
    2,281.13x = 3,143.31 × 1,573.19
  4. Step 4: Simplify right side
    2,281.13x = 4,945,023.86
  5. Step 5: Solve for x
    x = 4,945,023.86/2,281.13
  6. Step 6: Final answer
    x = 2,167.80

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Half scale
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Double scale
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1.5x scale

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.