Home / 1,480.22-2,219.52-931.23

Finding the Fourth Proportional to 1,480.22, 2,219.52 and 931.23

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Solution

The fourth proportional to 1,480.22, 2,219.52 and 931.23 is: 1,396.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.22 : 2,219.52 = 931.23 : x
  2. Step 2: Convert to fraction form
    1,480.22/2,219.52 = 931.23/x
  3. Step 3: Cross multiply
    1,480.22x = 2,219.52 × 931.23
  4. Step 4: Simplify right side
    1,480.22x = 2,066,883.61
  5. Step 5: Solve for x
    x = 2,066,883.61/1,480.22
  6. Step 6: Final answer
    x = 1,396.34

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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.