Home / 1,493.60-2,240.24-398.05

Finding the Fourth Proportional to 1,493.60, 2,240.24 and 398.05

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Solution

The fourth proportional to 1,493.60, 2,240.24 and 398.05 is: 597.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.60 : 2,240.24 = 398.05 : x
  2. Step 2: Convert to fraction form
    1,493.60/2,240.24 = 398.05/x
  3. Step 3: Cross multiply
    1,493.60x = 2,240.24 × 398.05
  4. Step 4: Simplify right side
    1,493.60x = 891,719.94
  5. Step 5: Solve for x
    x = 891,719.94/1,493.60
  6. Step 6: Final answer
    x = 597.03

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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.