Home / 3,138.60-4,706.34-1,406.04

Finding the Fourth Proportional to 3,138.60, 4,706.34 and 1,406.04

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Solution

The fourth proportional to 3,138.60, 4,706.34 and 1,406.04 is: 2,108.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.60 : 4,706.34 = 1,406.04 : x
  2. Step 2: Convert to fraction form
    3,138.60/4,706.34 = 1,406.04/x
  3. Step 3: Cross multiply
    3,138.60x = 4,706.34 × 1,406.04
  4. Step 4: Simplify right side
    3,138.60x = 6,617,302.29
  5. Step 5: Solve for x
    x = 6,617,302.29/3,138.60
  6. Step 6: Final answer
    x = 2,108.36

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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.