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Finding the Fourth Proportional to 1,866.95, 2,800.43 and 568.43

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Solution

The fourth proportional to 1,866.95, 2,800.43 and 568.43 is: 852.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866.95 : 2,800.43 = 568.43 : x
  2. Step 2: Convert to fraction form
    1,866.95/2,800.43 = 568.43/x
  3. Step 3: Cross multiply
    1,866.95x = 2,800.43 × 568.43
  4. Step 4: Simplify right side
    1,866.95x = 1,591,831.58
  5. Step 5: Solve for x
    x = 1,591,831.58/1,866.95
  6. Step 6: Final answer
    x = 852.64

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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.