Home / 1,481.12-2,220.93-493.58

Finding the Fourth Proportional to 1,481.12, 2,220.93 and 493.58

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Solution

The fourth proportional to 1,481.12, 2,220.93 and 493.58 is: 740.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.12 : 2,220.93 = 493.58 : x
  2. Step 2: Convert to fraction form
    1,481.12/2,220.93 = 493.58/x
  3. Step 3: Cross multiply
    1,481.12x = 2,220.93 × 493.58
  4. Step 4: Simplify right side
    1,481.12x = 1,096,208.79
  5. Step 5: Solve for x
    x = 1,096,208.79/1,481.12
  6. Step 6: Final answer
    x = 740.12

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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.