Home / 3,722.60-5,583.90-3,139.40

Finding the Fourth Proportional to 3,722.60, 5,583.90 and 3,139.40

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Solution

The fourth proportional to 3,722.60, 5,583.90 and 3,139.40 is: 4,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.60 : 5,583.90 = 3,139.40 : x
  2. Step 2: Convert to fraction form
    3,722.60/5,583.90 = 3,139.40/x
  3. Step 3: Cross multiply
    3,722.60x = 5,583.90 × 3,139.40
  4. Step 4: Simplify right side
    3,722.60x = 17,530,095.66
  5. Step 5: Solve for x
    x = 17,530,095.66/3,722.60
  6. Step 6: Final answer
    x = 4,709.10

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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.