Home / 2,790.28-4,153.53-2,748.74

Finding the Fourth Proportional to 2,790.28, 4,153.53 and 2,748.74

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Solution

The fourth proportional to 2,790.28, 4,153.53 and 2,748.74 is: 4,091.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.28 : 4,153.53 = 2,748.74 : x
  2. Step 2: Convert to fraction form
    2,790.28/4,153.53 = 2,748.74/x
  3. Step 3: Cross multiply
    2,790.28x = 4,153.53 × 2,748.74
  4. Step 4: Simplify right side
    2,790.28x = 11,416,974.05
  5. Step 5: Solve for x
    x = 11,416,974.05/2,790.28
  6. Step 6: Final answer
    x = 4,091.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.