Home / 3,398.22-4,687.40-2,455.41

Finding the Fourth Proportional to 3,398.22, 4,687.40 and 2,455.41

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Solution

The fourth proportional to 3,398.22, 4,687.40 and 2,455.41 is: 3,386.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.22 : 4,687.40 = 2,455.41 : x
  2. Step 2: Convert to fraction form
    3,398.22/4,687.40 = 2,455.41/x
  3. Step 3: Cross multiply
    3,398.22x = 4,687.40 × 2,455.41
  4. Step 4: Simplify right side
    3,398.22x = 11,509,476.56
  5. Step 5: Solve for x
    x = 11,509,476.56/3,398.22
  6. Step 6: Final answer
    x = 3,386.91

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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.