Home / 6,887.72-10,326.12-2,989.40

Finding the Fourth Proportional to 6,887.72, 10,326.12 and 2,989.40

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Solution

The fourth proportional to 6,887.72, 10,326.12 and 2,989.40 is: 4,481.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.72 : 10,326.12 = 2,989.40 : x
  2. Step 2: Convert to fraction form
    6,887.72/10,326.12 = 2,989.40/x
  3. Step 3: Cross multiply
    6,887.72x = 10,326.12 × 2,989.40
  4. Step 4: Simplify right side
    6,887.72x = 30,868,903.13
  5. Step 5: Solve for x
    x = 30,868,903.13/6,887.72
  6. Step 6: Final answer
    x = 4,481.73

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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.