Home / 2,770.40-4,133.89-2,754.20

Finding the Fourth Proportional to 2,770.40, 4,133.89 and 2,754.20

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Solution

The fourth proportional to 2,770.40, 4,133.89 and 2,754.20 is: 4,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.40 : 4,133.89 = 2,754.20 : x
  2. Step 2: Convert to fraction form
    2,770.40/4,133.89 = 2,754.20/x
  3. Step 3: Cross multiply
    2,770.40x = 4,133.89 × 2,754.20
  4. Step 4: Simplify right side
    2,770.40x = 11,385,559.84
  5. Step 5: Solve for x
    x = 11,385,559.84/2,770.40
  6. Step 6: Final answer
    x = 4,109.72

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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.