Home / 7,522.32-11,279.64-3,138.60

Finding the Fourth Proportional to 7,522.32, 11,279.64 and 3,138.60

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Solution

The fourth proportional to 7,522.32, 11,279.64 and 3,138.60 is: 4,706.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,522.32 : 11,279.64 = 3,138.60 : x
  2. Step 2: Convert to fraction form
    7,522.32/11,279.64 = 3,138.60/x
  3. Step 3: Cross multiply
    7,522.32x = 11,279.64 × 3,138.60
  4. Step 4: Simplify right side
    7,522.32x = 35,402,278.10
  5. Step 5: Solve for x
    x = 35,402,278.10/7,522.32
  6. Step 6: Final answer
    x = 4,706.30

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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.