Home / 7,429.08-11,142.18-2,748.36

Finding the Fourth Proportional to 7,429.08, 11,142.18 and 2,748.36

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Solution

The fourth proportional to 7,429.08, 11,142.18 and 2,748.36 is: 4,122.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.08 : 11,142.18 = 2,748.36 : x
  2. Step 2: Convert to fraction form
    7,429.08/11,142.18 = 2,748.36/x
  3. Step 3: Cross multiply
    7,429.08x = 11,142.18 × 2,748.36
  4. Step 4: Simplify right side
    7,429.08x = 30,622,721.82
  5. Step 5: Solve for x
    x = 30,622,721.82/7,429.08
  6. Step 6: Final answer
    x = 4,122.01

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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.