Home / 2,400.65-3,314.41-1,645.71

Finding the Fourth Proportional to 2,400.65, 3,314.41 and 1,645.71

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Solution

The fourth proportional to 2,400.65, 3,314.41 and 1,645.71 is: 2,272.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.65 : 3,314.41 = 1,645.71 : x
  2. Step 2: Convert to fraction form
    2,400.65/3,314.41 = 1,645.71/x
  3. Step 3: Cross multiply
    2,400.65x = 3,314.41 × 1,645.71
  4. Step 4: Simplify right side
    2,400.65x = 5,454,557.68
  5. Step 5: Solve for x
    x = 5,454,557.68/2,400.65
  6. Step 6: Final answer
    x = 2,272.12

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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.