Home / 6,931.90-10,399.48-2,251.89

Finding the Fourth Proportional to 6,931.90, 10,399.48 and 2,251.89

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Solution

The fourth proportional to 6,931.90, 10,399.48 and 2,251.89 is: 3,378.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.90 : 10,399.48 = 2,251.89 : x
  2. Step 2: Convert to fraction form
    6,931.90/10,399.48 = 2,251.89/x
  3. Step 3: Cross multiply
    6,931.90x = 10,399.48 × 2,251.89
  4. Step 4: Simplify right side
    6,931.90x = 23,418,485.02
  5. Step 5: Solve for x
    x = 23,418,485.02/6,931.90
  6. Step 6: Final answer
    x = 3,378.36

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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.