Home / 5,243.31-7,861.32-1,955.52

Finding the Fourth Proportional to 5,243.31, 7,861.32 and 1,955.52

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Solution

The fourth proportional to 5,243.31, 7,861.32 and 1,955.52 is: 2,931.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.31 : 7,861.32 = 1,955.52 : x
  2. Step 2: Convert to fraction form
    5,243.31/7,861.32 = 1,955.52/x
  3. Step 3: Cross multiply
    5,243.31x = 7,861.32 × 1,955.52
  4. Step 4: Simplify right side
    5,243.31x = 15,372,968.49
  5. Step 5: Solve for x
    x = 15,372,968.49/5,243.31
  6. Step 6: Final answer
    x = 2,931.92

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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.