Home / 7,279.17-10,909.62-3,114.28

Finding the Fourth Proportional to 7,279.17, 10,909.62 and 3,114.28

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Solution

The fourth proportional to 7,279.17, 10,909.62 and 3,114.28 is: 4,667.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.17 : 10,909.62 = 3,114.28 : x
  2. Step 2: Convert to fraction form
    7,279.17/10,909.62 = 3,114.28/x
  3. Step 3: Cross multiply
    7,279.17x = 10,909.62 × 3,114.28
  4. Step 4: Simplify right side
    7,279.17x = 33,975,611.37
  5. Step 5: Solve for x
    x = 33,975,611.37/7,279.17
  6. Step 6: Final answer
    x = 4,667.51

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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.