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Finding the Fourth Proportional to 7,310.10, 10,965.25 and 2,379.76

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Solution

The fourth proportional to 7,310.10, 10,965.25 and 2,379.76 is: 3,569.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,310.10 : 10,965.25 = 2,379.76 : x
  2. Step 2: Convert to fraction form
    7,310.10/10,965.25 = 2,379.76/x
  3. Step 3: Cross multiply
    7,310.10x = 10,965.25 × 2,379.76
  4. Step 4: Simplify right side
    7,310.10x = 26,094,663.34
  5. Step 5: Solve for x
    x = 26,094,663.34/7,310.10
  6. Step 6: Final answer
    x = 3,569.67

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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.