Home / 2,439.68-3,367.31-1,907.51

Finding the Fourth Proportional to 2,439.68, 3,367.31 and 1,907.51

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Solution

The fourth proportional to 2,439.68, 3,367.31 and 1,907.51 is: 2,632.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.68 : 3,367.31 = 1,907.51 : x
  2. Step 2: Convert to fraction form
    2,439.68/3,367.31 = 1,907.51/x
  3. Step 3: Cross multiply
    2,439.68x = 3,367.31 × 1,907.51
  4. Step 4: Simplify right side
    2,439.68x = 6,423,151.12
  5. Step 5: Solve for x
    x = 6,423,151.12/2,439.68
  6. Step 6: Final answer
    x = 2,632.79

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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.