Home / 2,749.05-4,123.70-900.27

Finding the Fourth Proportional to 2,749.05, 4,123.70 and 900.27

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Solution

The fourth proportional to 2,749.05, 4,123.70 and 900.27 is: 1,350.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.05 : 4,123.70 = 900.27 : x
  2. Step 2: Convert to fraction form
    2,749.05/4,123.70 = 900.27/x
  3. Step 3: Cross multiply
    2,749.05x = 4,123.70 × 900.27
  4. Step 4: Simplify right side
    2,749.05x = 3,712,438.90
  5. Step 5: Solve for x
    x = 3,712,438.90/2,749.05
  6. Step 6: Final answer
    x = 1,350.44

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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.