Home / 3,400.79-4,694.87-2,287.58

Finding the Fourth Proportional to 3,400.79, 4,694.87 and 2,287.58

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Solution

The fourth proportional to 3,400.79, 4,694.87 and 2,287.58 is: 3,158.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.79 : 4,694.87 = 2,287.58 : x
  2. Step 2: Convert to fraction form
    3,400.79/4,694.87 = 2,287.58/x
  3. Step 3: Cross multiply
    3,400.79x = 4,694.87 × 2,287.58
  4. Step 4: Simplify right side
    3,400.79x = 10,739,895.98
  5. Step 5: Solve for x
    x = 10,739,895.98/3,400.79
  6. Step 6: Final answer
    x = 3,158.06

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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.