Home / 2,809.16-4,212.22-1,165.40

Finding the Fourth Proportional to 2,809.16, 4,212.22 and 1,165.40

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Solution

The fourth proportional to 2,809.16, 4,212.22 and 1,165.40 is: 1,747.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.16 : 4,212.22 = 1,165.40 : x
  2. Step 2: Convert to fraction form
    2,809.16/4,212.22 = 1,165.40/x
  3. Step 3: Cross multiply
    2,809.16x = 4,212.22 × 1,165.40
  4. Step 4: Simplify right side
    2,809.16x = 4,908,921.19
  5. Step 5: Solve for x
    x = 4,908,921.19/2,809.16
  6. Step 6: Final answer
    x = 1,747.47

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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.