Home / 5,244.70-7,856.80-2,776.12

Finding the Fourth Proportional to 5,244.70, 7,856.80 and 2,776.12

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Solution

The fourth proportional to 5,244.70, 7,856.80 and 2,776.12 is: 4,158.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,244.70 : 7,856.80 = 2,776.12 : x
  2. Step 2: Convert to fraction form
    5,244.70/7,856.80 = 2,776.12/x
  3. Step 3: Cross multiply
    5,244.70x = 7,856.80 × 2,776.12
  4. Step 4: Simplify right side
    5,244.70x = 21,811,437.23
  5. Step 5: Solve for x
    x = 21,811,437.23/5,244.70
  6. Step 6: Final answer
    x = 4,158.76

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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.