Home / 3,756.75-5,182.38-2,340.21

Finding the Fourth Proportional to 3,756.75, 5,182.38 and 2,340.21

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Solution

The fourth proportional to 3,756.75, 5,182.38 and 2,340.21 is: 3,228.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756.75 : 5,182.38 = 2,340.21 : x
  2. Step 2: Convert to fraction form
    3,756.75/5,182.38 = 2,340.21/x
  3. Step 3: Cross multiply
    3,756.75x = 5,182.38 × 2,340.21
  4. Step 4: Simplify right side
    3,756.75x = 12,127,857.50
  5. Step 5: Solve for x
    x = 12,127,857.50/3,756.75
  6. Step 6: Final answer
    x = 3,228.28

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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.