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Finding the Fourth Proportional to 7,339.60, 11,013.90 and 2,956.60

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Solution

The fourth proportional to 7,339.60, 11,013.90 and 2,956.60 is: 4,436.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.60 : 11,013.90 = 2,956.60 : x
  2. Step 2: Convert to fraction form
    7,339.60/11,013.90 = 2,956.60/x
  3. Step 3: Cross multiply
    7,339.60x = 11,013.90 × 2,956.60
  4. Step 4: Simplify right side
    7,339.60x = 32,563,696.74
  5. Step 5: Solve for x
    x = 32,563,696.74/7,339.60
  6. Step 6: Final answer
    x = 4,436.71

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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.