Home / 7,426.85-11,139.08-2,749.08

Finding the Fourth Proportional to 7,426.85, 11,139.08 and 2,749.08

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Solution

The fourth proportional to 7,426.85, 11,139.08 and 2,749.08 is: 4,123.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,426.85 : 11,139.08 = 2,749.08 : x
  2. Step 2: Convert to fraction form
    7,426.85/11,139.08 = 2,749.08/x
  3. Step 3: Cross multiply
    7,426.85x = 11,139.08 × 2,749.08
  4. Step 4: Simplify right side
    7,426.85x = 30,622,208.30
  5. Step 5: Solve for x
    x = 30,622,208.30/7,426.85
  6. Step 6: Final answer
    x = 4,123.18

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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.