Home / 4,145.76-6,218.91-1,224.90

Finding the Fourth Proportional to 4,145.76, 6,218.91 and 1,224.90

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Solution

The fourth proportional to 4,145.76, 6,218.91 and 1,224.90 is: 1,837.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.76 : 6,218.91 = 1,224.90 : x
  2. Step 2: Convert to fraction form
    4,145.76/6,218.91 = 1,224.90/x
  3. Step 3: Cross multiply
    4,145.76x = 6,218.91 × 1,224.90
  4. Step 4: Simplify right side
    4,145.76x = 7,617,542.86
  5. Step 5: Solve for x
    x = 7,617,542.86/4,145.76
  6. Step 6: Final answer
    x = 1,837.43

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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.