Home / 2,685.62-4,029.12-1,224.45

Finding the Fourth Proportional to 2,685.62, 4,029.12 and 1,224.45

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Solution

The fourth proportional to 2,685.62, 4,029.12 and 1,224.45 is: 1,836.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.62 : 4,029.12 = 1,224.45 : x
  2. Step 2: Convert to fraction form
    2,685.62/4,029.12 = 1,224.45/x
  3. Step 3: Cross multiply
    2,685.62x = 4,029.12 × 1,224.45
  4. Step 4: Simplify right side
    2,685.62x = 4,933,455.98
  5. Step 5: Solve for x
    x = 4,933,455.98/2,685.62
  6. Step 6: Final answer
    x = 1,836.99

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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.