Home / 2,790.15-4,153.35-2,748.63

Finding the Fourth Proportional to 2,790.15, 4,153.35 and 2,748.63

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Solution

The fourth proportional to 2,790.15, 4,153.35 and 2,748.63 is: 4,091.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.15 : 4,153.35 = 2,748.63 : x
  2. Step 2: Convert to fraction form
    2,790.15/4,153.35 = 2,748.63/x
  3. Step 3: Cross multiply
    2,790.15x = 4,153.35 × 2,748.63
  4. Step 4: Simplify right side
    2,790.15x = 11,416,022.41
  5. Step 5: Solve for x
    x = 11,416,022.41/2,790.15
  6. Step 6: Final answer
    x = 4,091.54

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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.