Home / 4,190.90-6,286.66-1,417.87

Finding the Fourth Proportional to 4,190.90, 6,286.66 and 1,417.87

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Solution

The fourth proportional to 4,190.90, 6,286.66 and 1,417.87 is: 2,126.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.90 : 6,286.66 = 1,417.87 : x
  2. Step 2: Convert to fraction form
    4,190.90/6,286.66 = 1,417.87/x
  3. Step 3: Cross multiply
    4,190.90x = 6,286.66 × 1,417.87
  4. Step 4: Simplify right side
    4,190.90x = 8,913,647.35
  5. Step 5: Solve for x
    x = 8,913,647.35/4,190.90
  6. Step 6: Final answer
    x = 2,126.90

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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.