Home / 5,243.19-7,235.40-2,885.31

Finding the Fourth Proportional to 5,243.19, 7,235.40 and 2,885.31

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Solution

The fourth proportional to 5,243.19, 7,235.40 and 2,885.31 is: 3,981.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.19 : 7,235.40 = 2,885.31 : x
  2. Step 2: Convert to fraction form
    5,243.19/7,235.40 = 2,885.31/x
  3. Step 3: Cross multiply
    5,243.19x = 7,235.40 × 2,885.31
  4. Step 4: Simplify right side
    5,243.19x = 20,876,371.97
  5. Step 5: Solve for x
    x = 20,876,371.97/5,243.19
  6. Step 6: Final answer
    x = 3,981.62

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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.