Home / 3,411.36-5,113.20-2,639.52

Finding the Fourth Proportional to 3,411.36, 5,113.20 and 2,639.52

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Solution

The fourth proportional to 3,411.36, 5,113.20 and 2,639.52 is: 3,956.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.36 : 5,113.20 = 2,639.52 : x
  2. Step 2: Convert to fraction form
    3,411.36/5,113.20 = 2,639.52/x
  3. Step 3: Cross multiply
    3,411.36x = 5,113.20 × 2,639.52
  4. Step 4: Simplify right side
    3,411.36x = 13,496,393.66
  5. Step 5: Solve for x
    x = 13,496,393.66/3,411.36
  6. Step 6: Final answer
    x = 3,956.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.