Home / 2,924.11-4,386.18-1,280.80

Finding the Fourth Proportional to 2,924.11, 4,386.18 and 1,280.80

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Solution

The fourth proportional to 2,924.11, 4,386.18 and 1,280.80 is: 1,921.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,924.11 : 4,386.18 = 1,280.80 : x
  2. Step 2: Convert to fraction form
    2,924.11/4,386.18 = 1,280.80/x
  3. Step 3: Cross multiply
    2,924.11x = 4,386.18 × 1,280.80
  4. Step 4: Simplify right side
    2,924.11x = 5,617,819.34
  5. Step 5: Solve for x
    x = 5,617,819.34/2,924.11
  6. Step 6: Final answer
    x = 1,921.21

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Similar ratio
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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.