Home / 3,438-4,739.58-2,445.57

Finding the Fourth Proportional to 3,438, 4,739.58 and 2,445.57

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Solution

The fourth proportional to 3,438, 4,739.58 and 2,445.57 is: 3,371.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438 : 4,739.58 = 2,445.57 : x
  2. Step 2: Convert to fraction form
    3,438/4,739.58 = 2,445.57/x
  3. Step 3: Cross multiply
    3,438x = 4,739.58 × 2,445.57
  4. Step 4: Simplify right side
    3,438x = 11,590,974.66
  5. Step 5: Solve for x
    x = 11,590,974.66/3,438
  6. Step 6: Final answer
    x = 3,371.43

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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.