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Finding the Fourth Proportional to 6,586.52, 9,879.77 and 2,688.19

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Solution

The fourth proportional to 6,586.52, 9,879.77 and 2,688.19 is: 4,032.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,586.52 : 9,879.77 = 2,688.19 : x
  2. Step 2: Convert to fraction form
    6,586.52/9,879.77 = 2,688.19/x
  3. Step 3: Cross multiply
    6,586.52x = 9,879.77 × 2,688.19
  4. Step 4: Simplify right side
    6,586.52x = 26,558,680.94
  5. Step 5: Solve for x
    x = 26,558,680.94/6,586.52
  6. Step 6: Final answer
    x = 4,032.28

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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.