Home / 2,756.28-4,135.54-1,770.20

Finding the Fourth Proportional to 2,756.28, 4,135.54 and 1,770.20

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Solution

The fourth proportional to 2,756.28, 4,135.54 and 1,770.20 is: 2,656.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.28 : 4,135.54 = 1,770.20 : x
  2. Step 2: Convert to fraction form
    2,756.28/4,135.54 = 1,770.20/x
  3. Step 3: Cross multiply
    2,756.28x = 4,135.54 × 1,770.20
  4. Step 4: Simplify right side
    2,756.28x = 7,320,732.91
  5. Step 5: Solve for x
    x = 7,320,732.91/2,756.28
  6. Step 6: Final answer
    x = 2,656.02

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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.