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Finding the Fourth Proportional to 5,850.78, 8,700.92 and 5,666.22

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Solution

The fourth proportional to 5,850.78, 8,700.92 and 5,666.22 is: 8,426.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,850.78 : 8,700.92 = 5,666.22 : x
  2. Step 2: Convert to fraction form
    5,850.78/8,700.92 = 5,666.22/x
  3. Step 3: Cross multiply
    5,850.78x = 8,700.92 × 5,666.22
  4. Step 4: Simplify right side
    5,850.78x = 49,301,326.92
  5. Step 5: Solve for x
    x = 49,301,326.92/5,850.78
  6. Step 6: Final answer
    x = 8,426.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.