Home / 3,398.16-4,687.30-2,455.34

Finding the Fourth Proportional to 3,398.16, 4,687.30 and 2,455.34

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Solution

The fourth proportional to 3,398.16, 4,687.30 and 2,455.34 is: 3,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.16 : 4,687.30 = 2,455.34 : x
  2. Step 2: Convert to fraction form
    3,398.16/4,687.30 = 2,455.34/x
  3. Step 3: Cross multiply
    3,398.16x = 4,687.30 × 2,455.34
  4. Step 4: Simplify right side
    3,398.16x = 11,508,904.86
  5. Step 5: Solve for x
    x = 11,508,904.86/3,398.16
  6. Step 6: Final answer
    x = 3,386.80

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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.