Home / 3,500.10-5,252.34-1,420.11

Finding the Fourth Proportional to 3,500.10, 5,252.34 and 1,420.11

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Solution

The fourth proportional to 3,500.10, 5,252.34 and 1,420.11 is: 2,131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.10 : 5,252.34 = 1,420.11 : x
  2. Step 2: Convert to fraction form
    3,500.10/5,252.34 = 1,420.11/x
  3. Step 3: Cross multiply
    3,500.10x = 5,252.34 × 1,420.11
  4. Step 4: Simplify right side
    3,500.10x = 7,458,892.04
  5. Step 5: Solve for x
    x = 7,458,892.04/3,500.10
  6. Step 6: Final answer
    x = 2,131.05

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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.