Home / 3,390.38-4,672.36-2,328.47

Finding the Fourth Proportional to 3,390.38, 4,672.36 and 2,328.47

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Solution

The fourth proportional to 3,390.38, 4,672.36 and 2,328.47 is: 3,208.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.38 : 4,672.36 = 2,328.47 : x
  2. Step 2: Convert to fraction form
    3,390.38/4,672.36 = 2,328.47/x
  3. Step 3: Cross multiply
    3,390.38x = 4,672.36 × 2,328.47
  4. Step 4: Simplify right side
    3,390.38x = 10,879,450.09
  5. Step 5: Solve for x
    x = 10,879,450.09/3,390.38
  6. Step 6: Final answer
    x = 3,208.92

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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.