Home / 1,859.20-2,789.20-560.56

Finding the Fourth Proportional to 1,859.20, 2,789.20 and 560.56

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Solution

The fourth proportional to 1,859.20, 2,789.20 and 560.56 is: 840.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.20 : 2,789.20 = 560.56 : x
  2. Step 2: Convert to fraction form
    1,859.20/2,789.20 = 560.56/x
  3. Step 3: Cross multiply
    1,859.20x = 2,789.20 × 560.56
  4. Step 4: Simplify right side
    1,859.20x = 1,563,513.95
  5. Step 5: Solve for x
    x = 1,563,513.95/1,859.20
  6. Step 6: Final answer
    x = 840.96

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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.