Home / 1,876.10-2,810.55-1,105.70

Finding the Fourth Proportional to 1,876.10, 2,810.55 and 1,105.70

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Solution

The fourth proportional to 1,876.10, 2,810.55 and 1,105.70 is: 1,656.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876.10 : 2,810.55 = 1,105.70 : x
  2. Step 2: Convert to fraction form
    1,876.10/2,810.55 = 1,105.70/x
  3. Step 3: Cross multiply
    1,876.10x = 2,810.55 × 1,105.70
  4. Step 4: Simplify right side
    1,876.10x = 3,107,625.14
  5. Step 5: Solve for x
    x = 3,107,625.14/1,876.10
  6. Step 6: Final answer
    x = 1,656.43

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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.