Home / 2,887.26-4,330.96-939.62

Finding the Fourth Proportional to 2,887.26, 4,330.96 and 939.62

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Solution

The fourth proportional to 2,887.26, 4,330.96 and 939.62 is: 1,409.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.26 : 4,330.96 = 939.62 : x
  2. Step 2: Convert to fraction form
    2,887.26/4,330.96 = 939.62/x
  3. Step 3: Cross multiply
    2,887.26x = 4,330.96 × 939.62
  4. Step 4: Simplify right side
    2,887.26x = 4,069,443.39
  5. Step 5: Solve for x
    x = 4,069,443.39/2,887.26
  6. Step 6: Final answer
    x = 1,409.45

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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.