Home / 6,360.45-8,781.77-3,974.06

Finding the Fourth Proportional to 6,360.45, 8,781.77 and 3,974.06

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Solution

The fourth proportional to 6,360.45, 8,781.77 and 3,974.06 is: 5,486.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,360.45 : 8,781.77 = 3,974.06 : x
  2. Step 2: Convert to fraction form
    6,360.45/8,781.77 = 3,974.06/x
  3. Step 3: Cross multiply
    6,360.45x = 8,781.77 × 3,974.06
  4. Step 4: Simplify right side
    6,360.45x = 34,899,217.11
  5. Step 5: Solve for x
    x = 34,899,217.11/6,360.45
  6. Step 6: Final answer
    x = 5,486.91

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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.