Home / 3,135.18-4,316.70-2,662.10

Finding the Fourth Proportional to 3,135.18, 4,316.70 and 2,662.10

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Solution

The fourth proportional to 3,135.18, 4,316.70 and 2,662.10 is: 3,665.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.18 : 4,316.70 = 2,662.10 : x
  2. Step 2: Convert to fraction form
    3,135.18/4,316.70 = 2,662.10/x
  3. Step 3: Cross multiply
    3,135.18x = 4,316.70 × 2,662.10
  4. Step 4: Simplify right side
    3,135.18x = 11,491,487.07
  5. Step 5: Solve for x
    x = 11,491,487.07/3,135.18
  6. Step 6: Final answer
    x = 3,665.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.