Home / 4,310.60-6,465.90-1,389.14

Finding the Fourth Proportional to 4,310.60, 6,465.90 and 1,389.14

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Solution

The fourth proportional to 4,310.60, 6,465.90 and 1,389.14 is: 2,083.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,310.60 : 6,465.90 = 1,389.14 : x
  2. Step 2: Convert to fraction form
    4,310.60/6,465.90 = 1,389.14/x
  3. Step 3: Cross multiply
    4,310.60x = 6,465.90 × 1,389.14
  4. Step 4: Simplify right side
    4,310.60x = 8,982,040.33
  5. Step 5: Solve for x
    x = 8,982,040.33/4,310.60
  6. Step 6: Final answer
    x = 2,083.71

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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.