Home / 3,515.28-5,272.86-1,206.72

Finding the Fourth Proportional to 3,515.28, 5,272.86 and 1,206.72

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Solution

The fourth proportional to 3,515.28, 5,272.86 and 1,206.72 is: 1,810.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.28 : 5,272.86 = 1,206.72 : x
  2. Step 2: Convert to fraction form
    3,515.28/5,272.86 = 1,206.72/x
  3. Step 3: Cross multiply
    3,515.28x = 5,272.86 × 1,206.72
  4. Step 4: Simplify right side
    3,515.28x = 6,362,865.62
  5. Step 5: Solve for x
    x = 6,362,865.62/3,515.28
  6. Step 6: Final answer
    x = 1,810.06

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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.