Home / 6,471.12-9,709.98-2,772.36

Finding the Fourth Proportional to 6,471.12, 9,709.98 and 2,772.36

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Solution

The fourth proportional to 6,471.12, 9,709.98 and 2,772.36 is: 4,159.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,471.12 : 9,709.98 = 2,772.36 : x
  2. Step 2: Convert to fraction form
    6,471.12/9,709.98 = 2,772.36/x
  3. Step 3: Cross multiply
    6,471.12x = 9,709.98 × 2,772.36
  4. Step 4: Simplify right side
    6,471.12x = 26,919,560.15
  5. Step 5: Solve for x
    x = 26,919,560.15/6,471.12
  6. Step 6: Final answer
    x = 4,159.95

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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.