Home / 2,400.38-3,312.39-1,352.38

Finding the Fourth Proportional to 2,400.38, 3,312.39 and 1,352.38

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Solution

The fourth proportional to 2,400.38, 3,312.39 and 1,352.38 is: 1,866.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.38 : 3,312.39 = 1,352.38 : x
  2. Step 2: Convert to fraction form
    2,400.38/3,312.39 = 1,352.38/x
  3. Step 3: Cross multiply
    2,400.38x = 3,312.39 × 1,352.38
  4. Step 4: Simplify right side
    2,400.38x = 4,479,609.99
  5. Step 5: Solve for x
    x = 4,479,609.99/2,400.38
  6. Step 6: Final answer
    x = 1,866.21

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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.