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Finding the Fourth Proportional to 1,866.62, 2,798.58 and 567.38

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Solution

The fourth proportional to 1,866.62, 2,798.58 and 567.38 is: 850.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866.62 : 2,798.58 = 567.38 : x
  2. Step 2: Convert to fraction form
    1,866.62/2,798.58 = 567.38/x
  3. Step 3: Cross multiply
    1,866.62x = 2,798.58 × 567.38
  4. Step 4: Simplify right side
    1,866.62x = 1,587,858.32
  5. Step 5: Solve for x
    x = 1,587,858.32/1,866.62
  6. Step 6: Final answer
    x = 850.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.