Home / 7,881.83-10,876.91-4,296.78

Finding the Fourth Proportional to 7,881.83, 10,876.91 and 4,296.78

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Solution

The fourth proportional to 7,881.83, 10,876.91 and 4,296.78 is: 5,929.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.83 : 10,876.91 = 4,296.78 : x
  2. Step 2: Convert to fraction form
    7,881.83/10,876.91 = 4,296.78/x
  3. Step 3: Cross multiply
    7,881.83x = 10,876.91 × 4,296.78
  4. Step 4: Simplify right side
    7,881.83x = 46,735,689.35
  5. Step 5: Solve for x
    x = 46,735,689.35/7,881.83
  6. Step 6: Final answer
    x = 5,929.55

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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.