Home / 1,818.78-2,509.30-1,110.36

Finding the Fourth Proportional to 1,818.78, 2,509.30 and 1,110.36

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Solution

The fourth proportional to 1,818.78, 2,509.30 and 1,110.36 is: 1,531.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.78 : 2,509.30 = 1,110.36 : x
  2. Step 2: Convert to fraction form
    1,818.78/2,509.30 = 1,110.36/x
  3. Step 3: Cross multiply
    1,818.78x = 2,509.30 × 1,110.36
  4. Step 4: Simplify right side
    1,818.78x = 2,786,226.35
  5. Step 5: Solve for x
    x = 2,786,226.35/1,818.78
  6. Step 6: Final answer
    x = 1,531.92

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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.