Home / 7,680.52-11,522.28-3,520.63

Finding the Fourth Proportional to 7,680.52, 11,522.28 and 3,520.63

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Solution

The fourth proportional to 7,680.52, 11,522.28 and 3,520.63 is: 5,281.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.52 : 11,522.28 = 3,520.63 : x
  2. Step 2: Convert to fraction form
    7,680.52/11,522.28 = 3,520.63/x
  3. Step 3: Cross multiply
    7,680.52x = 11,522.28 × 3,520.63
  4. Step 4: Simplify right side
    7,680.52x = 40,565,627.03
  5. Step 5: Solve for x
    x = 40,565,627.03/7,680.52
  6. Step 6: Final answer
    x = 5,281.63

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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.