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Finding the Fourth Proportional to 7,305.63, 10,952.28 and 2,920.70

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Solution

The fourth proportional to 7,305.63, 10,952.28 and 2,920.70 is: 4,378.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.63 : 10,952.28 = 2,920.70 : x
  2. Step 2: Convert to fraction form
    7,305.63/10,952.28 = 2,920.70/x
  3. Step 3: Cross multiply
    7,305.63x = 10,952.28 × 2,920.70
  4. Step 4: Simplify right side
    7,305.63x = 31,988,269.43
  5. Step 5: Solve for x
    x = 31,988,269.43/7,305.63
  6. Step 6: Final answer
    x = 4,378.58

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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.