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Finding the Fourth Proportional to 7,850.78, 10,834.28 and 4,314.08

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Solution

The fourth proportional to 7,850.78, 10,834.28 and 4,314.08 is: 5,953.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850.78 : 10,834.28 = 4,314.08 : x
  2. Step 2: Convert to fraction form
    7,850.78/10,834.28 = 4,314.08/x
  3. Step 3: Cross multiply
    7,850.78x = 10,834.28 × 4,314.08
  4. Step 4: Simplify right side
    7,850.78x = 46,739,950.66
  5. Step 5: Solve for x
    x = 46,739,950.66/7,850.78
  6. Step 6: Final answer
    x = 5,953.54

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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.