Home / 3,913.15-5,398.81-2,233.35

Finding the Fourth Proportional to 3,913.15, 5,398.81 and 2,233.35

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Solution

The fourth proportional to 3,913.15, 5,398.81 and 2,233.35 is: 3,081.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.15 : 5,398.81 = 2,233.35 : x
  2. Step 2: Convert to fraction form
    3,913.15/5,398.81 = 2,233.35/x
  3. Step 3: Cross multiply
    3,913.15x = 5,398.81 × 2,233.35
  4. Step 4: Simplify right side
    3,913.15x = 12,057,432.31
  5. Step 5: Solve for x
    x = 12,057,432.31/3,913.15
  6. Step 6: Final answer
    x = 3,081.26

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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.