Home / 2,400.18-3,600.38-840.34

Finding the Fourth Proportional to 2,400.18, 3,600.38 and 840.34

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Solution

The fourth proportional to 2,400.18, 3,600.38 and 840.34 is: 1,260.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.18 : 3,600.38 = 840.34 : x
  2. Step 2: Convert to fraction form
    2,400.18/3,600.38 = 840.34/x
  3. Step 3: Cross multiply
    2,400.18x = 3,600.38 × 840.34
  4. Step 4: Simplify right side
    2,400.18x = 3,025,543.33
  5. Step 5: Solve for x
    x = 3,025,543.33/2,400.18
  6. Step 6: Final answer
    x = 1,260.55

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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.