Home / 2,400.24-3,312.66-1,405.82

Finding the Fourth Proportional to 2,400.24, 3,312.66 and 1,405.82

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Solution

The fourth proportional to 2,400.24, 3,312.66 and 1,405.82 is: 1,940.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.24 : 3,312.66 = 1,405.82 : x
  2. Step 2: Convert to fraction form
    2,400.24/3,312.66 = 1,405.82/x
  3. Step 3: Cross multiply
    2,400.24x = 3,312.66 × 1,405.82
  4. Step 4: Simplify right side
    2,400.24x = 4,657,003.68
  5. Step 5: Solve for x
    x = 4,657,003.68/2,400.24
  6. Step 6: Final answer
    x = 1,940.22

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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.