Home / 2,774.28-4,162.26-1,213.55

Finding the Fourth Proportional to 2,774.28, 4,162.26 and 1,213.55

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Solution

The fourth proportional to 2,774.28, 4,162.26 and 1,213.55 is: 1,820.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.28 : 4,162.26 = 1,213.55 : x
  2. Step 2: Convert to fraction form
    2,774.28/4,162.26 = 1,213.55/x
  3. Step 3: Cross multiply
    2,774.28x = 4,162.26 × 1,213.55
  4. Step 4: Simplify right side
    2,774.28x = 5,051,089.81
  5. Step 5: Solve for x
    x = 5,051,089.81/2,774.28
  6. Step 6: Final answer
    x = 1,820.68

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1.5x scale

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.