Home / 1,489.55-2,233.51-623.66

Finding the Fourth Proportional to 1,489.55, 2,233.51 and 623.66

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Solution

The fourth proportional to 1,489.55, 2,233.51 and 623.66 is: 935.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489.55 : 2,233.51 = 623.66 : x
  2. Step 2: Convert to fraction form
    1,489.55/2,233.51 = 623.66/x
  3. Step 3: Cross multiply
    1,489.55x = 2,233.51 × 623.66
  4. Step 4: Simplify right side
    1,489.55x = 1,392,938.12
  5. Step 5: Solve for x
    x = 1,392,938.12/1,489.55
  6. Step 6: Final answer
    x = 935.14

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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.