Home / 1,854.95-2,559.41-1,108.78

Finding the Fourth Proportional to 1,854.95, 2,559.41 and 1,108.78

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Solution

The fourth proportional to 1,854.95, 2,559.41 and 1,108.78 is: 1,529.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,854.95 : 2,559.41 = 1,108.78 : x
  2. Step 2: Convert to fraction form
    1,854.95/2,559.41 = 1,108.78/x
  3. Step 3: Cross multiply
    1,854.95x = 2,559.41 × 1,108.78
  4. Step 4: Simplify right side
    1,854.95x = 2,837,817.08
  5. Step 5: Solve for x
    x = 2,837,817.08/1,854.95
  6. Step 6: Final answer
    x = 1,529.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.