Home / 2,188.48-3,020.28-1,257.04

Finding the Fourth Proportional to 2,188.48, 3,020.28 and 1,257.04

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Solution

The fourth proportional to 2,188.48, 3,020.28 and 1,257.04 is: 1,734.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.48 : 3,020.28 = 1,257.04 : x
  2. Step 2: Convert to fraction form
    2,188.48/3,020.28 = 1,257.04/x
  3. Step 3: Cross multiply
    2,188.48x = 3,020.28 × 1,257.04
  4. Step 4: Simplify right side
    2,188.48x = 3,796,612.77
  5. Step 5: Solve for x
    x = 3,796,612.77/2,188.48
  6. Step 6: Final answer
    x = 1,734.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.