Home / 7,257.12-10,889.32-2,877.76

Finding the Fourth Proportional to 7,257.12, 10,889.32 and 2,877.76

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Solution

The fourth proportional to 7,257.12, 10,889.32 and 2,877.76 is: 4,318.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,257.12 : 10,889.32 = 2,877.76 : x
  2. Step 2: Convert to fraction form
    7,257.12/10,889.32 = 2,877.76/x
  3. Step 3: Cross multiply
    7,257.12x = 10,889.32 × 2,877.76
  4. Step 4: Simplify right side
    7,257.12x = 31,336,849.52
  5. Step 5: Solve for x
    x = 31,336,849.52/7,257.12
  6. Step 6: Final answer
    x = 4,318.08

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1.5x scale

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.