Home / 3,155.45-4,725.99-1,513.18

Finding the Fourth Proportional to 3,155.45, 4,725.99 and 1,513.18

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Solution

The fourth proportional to 3,155.45, 4,725.99 and 1,513.18 is: 2,266.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.45 : 4,725.99 = 1,513.18 : x
  2. Step 2: Convert to fraction form
    3,155.45/4,725.99 = 1,513.18/x
  3. Step 3: Cross multiply
    3,155.45x = 4,725.99 × 1,513.18
  4. Step 4: Simplify right side
    3,155.45x = 7,151,273.55
  5. Step 5: Solve for x
    x = 7,151,273.55/3,155.45
  6. Step 6: Final answer
    x = 2,266.32

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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.