Home / 2,859.76-4,291.11-2,166.20

Finding the Fourth Proportional to 2,859.76, 4,291.11 and 2,166.20

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Solution

The fourth proportional to 2,859.76, 4,291.11 and 2,166.20 is: 3,250.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.76 : 4,291.11 = 2,166.20 : x
  2. Step 2: Convert to fraction form
    2,859.76/4,291.11 = 2,166.20/x
  3. Step 3: Cross multiply
    2,859.76x = 4,291.11 × 2,166.20
  4. Step 4: Simplify right side
    2,859.76x = 9,295,372.90
  5. Step 5: Solve for x
    x = 9,295,372.90/2,859.76
  6. Step 6: Final answer
    x = 3,250.41

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.