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Finding the Fourth Proportional to 1,862.85, 2,793.45 and 564.06

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Solution

The fourth proportional to 1,862.85, 2,793.45 and 564.06 is: 845.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.85 : 2,793.45 = 564.06 : x
  2. Step 2: Convert to fraction form
    1,862.85/2,793.45 = 564.06/x
  3. Step 3: Cross multiply
    1,862.85x = 2,793.45 × 564.06
  4. Step 4: Simplify right side
    1,862.85x = 1,575,673.41
  5. Step 5: Solve for x
    x = 1,575,673.41/1,862.85
  6. Step 6: Final answer
    x = 845.84

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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.