Home / 7,119.24-10,671.54-3,415.92

Finding the Fourth Proportional to 7,119.24, 10,671.54 and 3,415.92

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Solution

The fourth proportional to 7,119.24, 10,671.54 and 3,415.92 is: 5,120.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.24 : 10,671.54 = 3,415.92 : x
  2. Step 2: Convert to fraction form
    7,119.24/10,671.54 = 3,415.92/x
  3. Step 3: Cross multiply
    7,119.24x = 10,671.54 × 3,415.92
  4. Step 4: Simplify right side
    7,119.24x = 36,453,126.92
  5. Step 5: Solve for x
    x = 36,453,126.92/7,119.24
  6. Step 6: Final answer
    x = 5,120.37

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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.