Home / 2,768.95-3,819.63-1,773.10

Finding the Fourth Proportional to 2,768.95, 3,819.63 and 1,773.10

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Solution

The fourth proportional to 2,768.95, 3,819.63 and 1,773.10 is: 2,445.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.95 : 3,819.63 = 1,773.10 : x
  2. Step 2: Convert to fraction form
    2,768.95/3,819.63 = 1,773.10/x
  3. Step 3: Cross multiply
    2,768.95x = 3,819.63 × 1,773.10
  4. Step 4: Simplify right side
    2,768.95x = 6,772,585.95
  5. Step 5: Solve for x
    x = 6,772,585.95/2,768.95
  6. Step 6: Final answer
    x = 2,445.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.