Home / 3,109.38-4,664.10-1,810.02

Finding the Fourth Proportional to 3,109.38, 4,664.10 and 1,810.02

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Solution

The fourth proportional to 3,109.38, 4,664.10 and 1,810.02 is: 2,715.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.38 : 4,664.10 = 1,810.02 : x
  2. Step 2: Convert to fraction form
    3,109.38/4,664.10 = 1,810.02/x
  3. Step 3: Cross multiply
    3,109.38x = 4,664.10 × 1,810.02
  4. Step 4: Simplify right side
    3,109.38x = 8,442,114.28
  5. Step 5: Solve for x
    x = 8,442,114.28/3,109.38
  6. Step 6: Final answer
    x = 2,715.05

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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.