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Finding the Fourth Proportional to 7,098.54, 10,647.81 and 3,977.07

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Solution

The fourth proportional to 7,098.54, 10,647.81 and 3,977.07 is: 5,965.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.54 : 10,647.81 = 3,977.07 : x
  2. Step 2: Convert to fraction form
    7,098.54/10,647.81 = 3,977.07/x
  3. Step 3: Cross multiply
    7,098.54x = 10,647.81 × 3,977.07
  4. Step 4: Simplify right side
    7,098.54x = 42,347,085.72
  5. Step 5: Solve for x
    x = 42,347,085.72/7,098.54
  6. Step 6: Final answer
    x = 5,965.61

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Double scale
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Similar ratio
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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.