Home / 3,313.87-4,967.72-1,121.07

Finding the Fourth Proportional to 3,313.87, 4,967.72 and 1,121.07

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Solution

The fourth proportional to 3,313.87, 4,967.72 and 1,121.07 is: 1,680.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.87 : 4,967.72 = 1,121.07 : x
  2. Step 2: Convert to fraction form
    3,313.87/4,967.72 = 1,121.07/x
  3. Step 3: Cross multiply
    3,313.87x = 4,967.72 × 1,121.07
  4. Step 4: Simplify right side
    3,313.87x = 5,569,131.42
  5. Step 5: Solve for x
    x = 5,569,131.42/3,313.87
  6. Step 6: Final answer
    x = 1,680.55

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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.