Home / 3,807.72-5,711.52-2,342.40

Finding the Fourth Proportional to 3,807.72, 5,711.52 and 2,342.40

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Solution

The fourth proportional to 3,807.72, 5,711.52 and 2,342.40 is: 3,513.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,807.72 : 5,711.52 = 2,342.40 : x
  2. Step 2: Convert to fraction form
    3,807.72/5,711.52 = 2,342.40/x
  3. Step 3: Cross multiply
    3,807.72x = 5,711.52 × 2,342.40
  4. Step 4: Simplify right side
    3,807.72x = 13,378,664.45
  5. Step 5: Solve for x
    x = 13,378,664.45/3,807.72
  6. Step 6: Final answer
    x = 3,513.56

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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.