Home / 1,865.09-2,798.66-1,135.18

Finding the Fourth Proportional to 1,865.09, 2,798.66 and 1,135.18

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Solution

The fourth proportional to 1,865.09, 2,798.66 and 1,135.18 is: 1,703.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.09 : 2,798.66 = 1,135.18 : x
  2. Step 2: Convert to fraction form
    1,865.09/2,798.66 = 1,135.18/x
  3. Step 3: Cross multiply
    1,865.09x = 2,798.66 × 1,135.18
  4. Step 4: Simplify right side
    1,865.09x = 3,176,982.86
  5. Step 5: Solve for x
    x = 3,176,982.86/1,865.09
  6. Step 6: Final answer
    x = 1,703.39

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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.