Home / 3,756.85-5,184.36-2,078.21

Finding the Fourth Proportional to 3,756.85, 5,184.36 and 2,078.21

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Solution

The fourth proportional to 3,756.85, 5,184.36 and 2,078.21 is: 2,867.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756.85 : 5,184.36 = 2,078.21 : x
  2. Step 2: Convert to fraction form
    3,756.85/5,184.36 = 2,078.21/x
  3. Step 3: Cross multiply
    3,756.85x = 5,184.36 × 2,078.21
  4. Step 4: Simplify right side
    3,756.85x = 10,774,178.40
  5. Step 5: Solve for x
    x = 10,774,178.40/3,756.85
  6. Step 6: Final answer
    x = 2,867.88

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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.