Home / 3,398.72-4,689.50-2,070.06

Finding the Fourth Proportional to 3,398.72, 4,689.50 and 2,070.06

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Solution

The fourth proportional to 3,398.72, 4,689.50 and 2,070.06 is: 2,856.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.72 : 4,689.50 = 2,070.06 : x
  2. Step 2: Convert to fraction form
    3,398.72/4,689.50 = 2,070.06/x
  3. Step 3: Cross multiply
    3,398.72x = 4,689.50 × 2,070.06
  4. Step 4: Simplify right side
    3,398.72x = 9,707,546.37
  5. Step 5: Solve for x
    x = 9,707,546.37/3,398.72
  6. Step 6: Final answer
    x = 2,856.24

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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.