Home / 2,841.28-3,920.40-1,792.76

Finding the Fourth Proportional to 2,841.28, 3,920.40 and 1,792.76

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Solution

The fourth proportional to 2,841.28, 3,920.40 and 1,792.76 is: 2,473.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.28 : 3,920.40 = 1,792.76 : x
  2. Step 2: Convert to fraction form
    2,841.28/3,920.40 = 1,792.76/x
  3. Step 3: Cross multiply
    2,841.28x = 3,920.40 × 1,792.76
  4. Step 4: Simplify right side
    2,841.28x = 7,028,336.30
  5. Step 5: Solve for x
    x = 7,028,336.30/2,841.28
  6. Step 6: Final answer
    x = 2,473.65

Related Problems

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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.