Home / 3,398.06-4,689.24-1,905.94

Finding the Fourth Proportional to 3,398.06, 4,689.24 and 1,905.94

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Solution

The fourth proportional to 3,398.06, 4,689.24 and 1,905.94 is: 2,630.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.06 : 4,689.24 = 1,905.94 : x
  2. Step 2: Convert to fraction form
    3,398.06/4,689.24 = 1,905.94/x
  3. Step 3: Cross multiply
    3,398.06x = 4,689.24 × 1,905.94
  4. Step 4: Simplify right side
    3,398.06x = 8,937,410.73
  5. Step 5: Solve for x
    x = 8,937,410.73/3,398.06
  6. Step 6: Final answer
    x = 2,630.15

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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.