Home / 2,124.92-3,181.47-1,082.68

Finding the Fourth Proportional to 2,124.92, 3,181.47 and 1,082.68

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Solution

The fourth proportional to 2,124.92, 3,181.47 and 1,082.68 is: 1,621.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.92 : 3,181.47 = 1,082.68 : x
  2. Step 2: Convert to fraction form
    2,124.92/3,181.47 = 1,082.68/x
  3. Step 3: Cross multiply
    2,124.92x = 3,181.47 × 1,082.68
  4. Step 4: Simplify right side
    2,124.92x = 3,444,513.94
  5. Step 5: Solve for x
    x = 3,444,513.94/2,124.92
  6. Step 6: Final answer
    x = 1,621.01

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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.