Home / 2,206.11-3,045.12-1,420.16

Finding the Fourth Proportional to 2,206.11, 3,045.12 and 1,420.16

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Solution

The fourth proportional to 2,206.11, 3,045.12 and 1,420.16 is: 1,960.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.11 : 3,045.12 = 1,420.16 : x
  2. Step 2: Convert to fraction form
    2,206.11/3,045.12 = 1,420.16/x
  3. Step 3: Cross multiply
    2,206.11x = 3,045.12 × 1,420.16
  4. Step 4: Simplify right side
    2,206.11x = 4,324,539.10
  5. Step 5: Solve for x
    x = 4,324,539.10/2,206.11
  6. Step 6: Final answer
    x = 1,960.26

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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.