Home / 1,493.60-2,240.40-1,479.20

Finding the Fourth Proportional to 1,493.60, 2,240.40 and 1,479.20

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Solution

The fourth proportional to 1,493.60, 2,240.40 and 1,479.20 is: 2,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.60 : 2,240.40 = 1,479.20 : x
  2. Step 2: Convert to fraction form
    1,493.60/2,240.40 = 1,479.20/x
  3. Step 3: Cross multiply
    1,493.60x = 2,240.40 × 1,479.20
  4. Step 4: Simplify right side
    1,493.60x = 3,313,999.68
  5. Step 5: Solve for x
    x = 3,313,999.68/1,493.60
  6. Step 6: Final answer
    x = 2,218.80

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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.