Home / 2,887.04-4,330.40-939.13

Finding the Fourth Proportional to 2,887.04, 4,330.40 and 939.13

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Solution

The fourth proportional to 2,887.04, 4,330.40 and 939.13 is: 1,408.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.04 : 4,330.40 = 939.13 : x
  2. Step 2: Convert to fraction form
    2,887.04/4,330.40 = 939.13/x
  3. Step 3: Cross multiply
    2,887.04x = 4,330.40 × 939.13
  4. Step 4: Simplify right side
    2,887.04x = 4,066,793.03
  5. Step 5: Solve for x
    x = 4,066,793.03/2,887.04
  6. Step 6: Final answer
    x = 1,408.64

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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.