Home / 2,772.24-4,140.38-2,511.72

Finding the Fourth Proportional to 2,772.24, 4,140.38 and 2,511.72

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Solution

The fourth proportional to 2,772.24, 4,140.38 and 2,511.72 is: 3,751.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.24 : 4,140.38 = 2,511.72 : x
  2. Step 2: Convert to fraction form
    2,772.24/4,140.38 = 2,511.72/x
  3. Step 3: Cross multiply
    2,772.24x = 4,140.38 × 2,511.72
  4. Step 4: Simplify right side
    2,772.24x = 10,399,475.25
  5. Step 5: Solve for x
    x = 10,399,475.25/2,772.24
  6. Step 6: Final answer
    x = 3,751.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.