Home / 2,756.08-4,134.12-1,218.16

Finding the Fourth Proportional to 2,756.08, 4,134.12 and 1,218.16

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Solution

The fourth proportional to 2,756.08, 4,134.12 and 1,218.16 is: 1,827.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.08 : 4,134.12 = 1,218.16 : x
  2. Step 2: Convert to fraction form
    2,756.08/4,134.12 = 1,218.16/x
  3. Step 3: Cross multiply
    2,756.08x = 4,134.12 × 1,218.16
  4. Step 4: Simplify right side
    2,756.08x = 5,036,019.62
  5. Step 5: Solve for x
    x = 5,036,019.62/2,756.08
  6. Step 6: Final answer
    x = 1,827.24

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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.