Home / 2,161.49-3,237.37-1,515.11

Finding the Fourth Proportional to 2,161.49, 3,237.37 and 1,515.11

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Solution

The fourth proportional to 2,161.49, 3,237.37 and 1,515.11 is: 2,269.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.49 : 3,237.37 = 1,515.11 : x
  2. Step 2: Convert to fraction form
    2,161.49/3,237.37 = 1,515.11/x
  3. Step 3: Cross multiply
    2,161.49x = 3,237.37 × 1,515.11
  4. Step 4: Simplify right side
    2,161.49x = 4,904,947.90
  5. Step 5: Solve for x
    x = 4,904,947.90/2,161.49
  6. Step 6: Final answer
    x = 2,269.25

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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.