Home / 2,617.08-3,612.22-1,621.76

Finding the Fourth Proportional to 2,617.08, 3,612.22 and 1,621.76

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Solution

The fourth proportional to 2,617.08, 3,612.22 and 1,621.76 is: 2,238.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.08 : 3,612.22 = 1,621.76 : x
  2. Step 2: Convert to fraction form
    2,617.08/3,612.22 = 1,621.76/x
  3. Step 3: Cross multiply
    2,617.08x = 3,612.22 × 1,621.76
  4. Step 4: Simplify right side
    2,617.08x = 5,858,153.91
  5. Step 5: Solve for x
    x = 5,858,153.91/2,617.08
  6. Step 6: Final answer
    x = 2,238.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.