Home / 7,340.79-11,012.99-3,440.64

Finding the Fourth Proportional to 7,340.79, 11,012.99 and 3,440.64

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Solution

The fourth proportional to 7,340.79, 11,012.99 and 3,440.64 is: 5,161.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.79 : 11,012.99 = 3,440.64 : x
  2. Step 2: Convert to fraction form
    7,340.79/11,012.99 = 3,440.64/x
  3. Step 3: Cross multiply
    7,340.79x = 11,012.99 × 3,440.64
  4. Step 4: Simplify right side
    7,340.79x = 37,891,716.71
  5. Step 5: Solve for x
    x = 37,891,716.71/7,340.79
  6. Step 6: Final answer
    x = 5,161.80

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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.