Home / 2,756.20-4,133.14-1,112.30

Finding the Fourth Proportional to 2,756.20, 4,133.14 and 1,112.30

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Solution

The fourth proportional to 2,756.20, 4,133.14 and 1,112.30 is: 1,667.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.20 : 4,133.14 = 1,112.30 : x
  2. Step 2: Convert to fraction form
    2,756.20/4,133.14 = 1,112.30/x
  3. Step 3: Cross multiply
    2,756.20x = 4,133.14 × 1,112.30
  4. Step 4: Simplify right side
    2,756.20x = 4,597,291.62
  5. Step 5: Solve for x
    x = 4,597,291.62/2,756.20
  6. Step 6: Final answer
    x = 1,667.98

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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.