Home / 5,200.56-7,803.92-1,915.96

Finding the Fourth Proportional to 5,200.56, 7,803.92 and 1,915.96

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Solution

The fourth proportional to 5,200.56, 7,803.92 and 1,915.96 is: 2,875.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,200.56 : 7,803.92 = 1,915.96 : x
  2. Step 2: Convert to fraction form
    5,200.56/7,803.92 = 1,915.96/x
  3. Step 3: Cross multiply
    5,200.56x = 7,803.92 × 1,915.96
  4. Step 4: Simplify right side
    5,200.56x = 14,951,983.84
  5. Step 5: Solve for x
    x = 14,951,983.84/5,200.56
  6. Step 6: Final answer
    x = 2,875.07

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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.