Home / 2,749.22-4,123.40-900.29

Finding the Fourth Proportional to 2,749.22, 4,123.40 and 900.29

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Solution

The fourth proportional to 2,749.22, 4,123.40 and 900.29 is: 1,350.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.22 : 4,123.40 = 900.29 : x
  2. Step 2: Convert to fraction form
    2,749.22/4,123.40 = 900.29/x
  3. Step 3: Cross multiply
    2,749.22x = 4,123.40 × 900.29
  4. Step 4: Simplify right side
    2,749.22x = 3,712,261.59
  5. Step 5: Solve for x
    x = 3,712,261.59/2,749.22
  6. Step 6: Final answer
    x = 1,350.30

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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.