Home / 2,400.16-3,600.20-645.22

Finding the Fourth Proportional to 2,400.16, 3,600.20 and 645.22

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Solution

The fourth proportional to 2,400.16, 3,600.20 and 645.22 is: 967.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.16 : 3,600.20 = 645.22 : x
  2. Step 2: Convert to fraction form
    2,400.16/3,600.20 = 645.22/x
  3. Step 3: Cross multiply
    2,400.16x = 3,600.20 × 645.22
  4. Step 4: Simplify right side
    2,400.16x = 2,322,921.04
  5. Step 5: Solve for x
    x = 2,322,921.04/2,400.16
  6. Step 6: Final answer
    x = 967.82

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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.