Home / 5,206.75-7,185.47-2,849.05

Finding the Fourth Proportional to 5,206.75, 7,185.47 and 2,849.05

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Solution

The fourth proportional to 5,206.75, 7,185.47 and 2,849.05 is: 3,931.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,206.75 : 7,185.47 = 2,849.05 : x
  2. Step 2: Convert to fraction form
    5,206.75/7,185.47 = 2,849.05/x
  3. Step 3: Cross multiply
    5,206.75x = 7,185.47 × 2,849.05
  4. Step 4: Simplify right side
    5,206.75x = 20,471,763.30
  5. Step 5: Solve for x
    x = 20,471,763.30/5,206.75
  6. Step 6: Final answer
    x = 3,931.77

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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.