Home / 2,690.11-3,712.33-1,511.16

Finding the Fourth Proportional to 2,690.11, 3,712.33 and 1,511.16

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Solution

The fourth proportional to 2,690.11, 3,712.33 and 1,511.16 is: 2,085.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.11 : 3,712.33 = 1,511.16 : x
  2. Step 2: Convert to fraction form
    2,690.11/3,712.33 = 1,511.16/x
  3. Step 3: Cross multiply
    2,690.11x = 3,712.33 × 1,511.16
  4. Step 4: Simplify right side
    2,690.11x = 5,609,912.57
  5. Step 5: Solve for x
    x = 5,609,912.57/2,690.11
  6. Step 6: Final answer
    x = 2,085.38

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1.5x scale

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.