Home / 6,381.36-8,806.68-3,587.04

Finding the Fourth Proportional to 6,381.36, 8,806.68 and 3,587.04

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Solution

The fourth proportional to 6,381.36, 8,806.68 and 3,587.04 is: 4,950.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.36 : 8,806.68 = 3,587.04 : x
  2. Step 2: Convert to fraction form
    6,381.36/8,806.68 = 3,587.04/x
  3. Step 3: Cross multiply
    6,381.36x = 8,806.68 × 3,587.04
  4. Step 4: Simplify right side
    6,381.36x = 31,589,913.43
  5. Step 5: Solve for x
    x = 31,589,913.43/6,381.36
  6. Step 6: Final answer
    x = 4,950.34

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.