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Finding the Fourth Proportional to 4,891.05, 7,319.03 and 4,235.19

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Solution

The fourth proportional to 4,891.05, 7,319.03 and 4,235.19 is: 6,337.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,891.05 : 7,319.03 = 4,235.19 : x
  2. Step 2: Convert to fraction form
    4,891.05/7,319.03 = 4,235.19/x
  3. Step 3: Cross multiply
    4,891.05x = 7,319.03 × 4,235.19
  4. Step 4: Simplify right side
    4,891.05x = 30,997,493.25
  5. Step 5: Solve for x
    x = 30,997,493.25/4,891.05
  6. Step 6: Final answer
    x = 6,337.59

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Double scale
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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.