Home / 1,460.23-2,188.82-638.35

Finding the Fourth Proportional to 1,460.23, 2,188.82 and 638.35

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Solution

The fourth proportional to 1,460.23, 2,188.82 and 638.35 is: 956.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,460.23 : 2,188.82 = 638.35 : x
  2. Step 2: Convert to fraction form
    1,460.23/2,188.82 = 638.35/x
  3. Step 3: Cross multiply
    1,460.23x = 2,188.82 × 638.35
  4. Step 4: Simplify right side
    1,460.23x = 1,397,229.37
  5. Step 5: Solve for x
    x = 1,397,229.37/1,460.23
  6. Step 6: Final answer
    x = 956.86

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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.