Home / 2,887.53-4,330.32-939.25

Finding the Fourth Proportional to 2,887.53, 4,330.32 and 939.25

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Solution

The fourth proportional to 2,887.53, 4,330.32 and 939.25 is: 1,408.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.53 : 4,330.32 = 939.25 : x
  2. Step 2: Convert to fraction form
    2,887.53/4,330.32 = 939.25/x
  3. Step 3: Cross multiply
    2,887.53x = 4,330.32 × 939.25
  4. Step 4: Simplify right side
    2,887.53x = 4,067,253.06
  5. Step 5: Solve for x
    x = 4,067,253.06/2,887.53
  6. Step 6: Final answer
    x = 1,408.56

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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.