Home / 2,921.24-4,378.62-1,461.62

Finding the Fourth Proportional to 2,921.24, 4,378.62 and 1,461.62

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Solution

The fourth proportional to 2,921.24, 4,378.62 and 1,461.62 is: 2,190.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.24 : 4,378.62 = 1,461.62 : x
  2. Step 2: Convert to fraction form
    2,921.24/4,378.62 = 1,461.62/x
  3. Step 3: Cross multiply
    2,921.24x = 4,378.62 × 1,461.62
  4. Step 4: Simplify right side
    2,921.24x = 6,399,878.56
  5. Step 5: Solve for x
    x = 6,399,878.56/2,921.24
  6. Step 6: Final answer
    x = 2,190.81

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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.