Home / 3,746.40-5,614.20-1,664.70

Finding the Fourth Proportional to 3,746.40, 5,614.20 and 1,664.70

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Solution

The fourth proportional to 3,746.40, 5,614.20 and 1,664.70 is: 2,494.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.40 : 5,614.20 = 1,664.70 : x
  2. Step 2: Convert to fraction form
    3,746.40/5,614.20 = 1,664.70/x
  3. Step 3: Cross multiply
    3,746.40x = 5,614.20 × 1,664.70
  4. Step 4: Simplify right side
    3,746.40x = 9,345,958.74
  5. Step 5: Solve for x
    x = 9,345,958.74/3,746.40
  6. Step 6: Final answer
    x = 2,494.65

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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.