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Finding the Fourth Proportional to 7,299.81, 10,957.91 and 2,920.32

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Solution

The fourth proportional to 7,299.81, 10,957.91 and 2,920.32 is: 4,383.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,299.81 : 10,957.91 = 2,920.32 : x
  2. Step 2: Convert to fraction form
    7,299.81/10,957.91 = 2,920.32/x
  3. Step 3: Cross multiply
    7,299.81x = 10,957.91 × 2,920.32
  4. Step 4: Simplify right side
    7,299.81x = 32,000,589.13
  5. Step 5: Solve for x
    x = 32,000,589.13/7,299.81
  6. Step 6: Final answer
    x = 4,383.76

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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.