Home / 2,397.89-3,309.32-1,403.11

Finding the Fourth Proportional to 2,397.89, 3,309.32 and 1,403.11

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Solution

The fourth proportional to 2,397.89, 3,309.32 and 1,403.11 is: 1,936.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,397.89 : 3,309.32 = 1,403.11 : x
  2. Step 2: Convert to fraction form
    2,397.89/3,309.32 = 1,403.11/x
  3. Step 3: Cross multiply
    2,397.89x = 3,309.32 × 1,403.11
  4. Step 4: Simplify right side
    2,397.89x = 4,643,324.70
  5. Step 5: Solve for x
    x = 4,643,324.70/2,397.89
  6. Step 6: Final answer
    x = 1,936.42

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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.