Home / 3,911.87-5,397.50-2,232.81

Finding the Fourth Proportional to 3,911.87, 5,397.50 and 2,232.81

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Solution

The fourth proportional to 3,911.87, 5,397.50 and 2,232.81 is: 3,080.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.87 : 5,397.50 = 2,232.81 : x
  2. Step 2: Convert to fraction form
    3,911.87/5,397.50 = 2,232.81/x
  3. Step 3: Cross multiply
    3,911.87x = 5,397.50 × 2,232.81
  4. Step 4: Simplify right side
    3,911.87x = 12,051,597.56
  5. Step 5: Solve for x
    x = 12,051,597.56/3,911.87
  6. Step 6: Final answer
    x = 3,080.77

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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.