Home / 2,631.93-3,945.86-1,591.68

Finding the Fourth Proportional to 2,631.93, 3,945.86 and 1,591.68

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Solution

The fourth proportional to 2,631.93, 3,945.86 and 1,591.68 is: 2,386.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.93 : 3,945.86 = 1,591.68 : x
  2. Step 2: Convert to fraction form
    2,631.93/3,945.86 = 1,591.68/x
  3. Step 3: Cross multiply
    2,631.93x = 3,945.86 × 1,591.68
  4. Step 4: Simplify right side
    2,631.93x = 6,280,568.21
  5. Step 5: Solve for x
    x = 6,280,568.21/2,631.93
  6. Step 6: Final answer
    x = 2,386.30

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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.