Home / 2,761.09-4,138.29-1,117.19

Finding the Fourth Proportional to 2,761.09, 4,138.29 and 1,117.19

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Solution

The fourth proportional to 2,761.09, 4,138.29 and 1,117.19 is: 1,674.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.09 : 4,138.29 = 1,117.19 : x
  2. Step 2: Convert to fraction form
    2,761.09/4,138.29 = 1,117.19/x
  3. Step 3: Cross multiply
    2,761.09x = 4,138.29 × 1,117.19
  4. Step 4: Simplify right side
    2,761.09x = 4,623,266.55
  5. Step 5: Solve for x
    x = 4,623,266.55/2,761.09
  6. Step 6: Final answer
    x = 1,674.44

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1.5x scale

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.