Home / 5,733.78-7,912.53-3,215.90

Finding the Fourth Proportional to 5,733.78, 7,912.53 and 3,215.90

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Solution

The fourth proportional to 5,733.78, 7,912.53 and 3,215.90 is: 4,437.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,733.78 : 7,912.53 = 3,215.90 : x
  2. Step 2: Convert to fraction form
    5,733.78/7,912.53 = 3,215.90/x
  3. Step 3: Cross multiply
    5,733.78x = 7,912.53 × 3,215.90
  4. Step 4: Simplify right side
    5,733.78x = 25,445,865.66
  5. Step 5: Solve for x
    x = 25,445,865.66/5,733.78
  6. Step 6: Final answer
    x = 4,437.89

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1.5x scale

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.