Home / 1,922.08-2,652.39-1,082.78

Finding the Fourth Proportional to 1,922.08, 2,652.39 and 1,082.78

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Solution

The fourth proportional to 1,922.08, 2,652.39 and 1,082.78 is: 1,494.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.08 : 2,652.39 = 1,082.78 : x
  2. Step 2: Convert to fraction form
    1,922.08/2,652.39 = 1,082.78/x
  3. Step 3: Cross multiply
    1,922.08x = 2,652.39 × 1,082.78
  4. Step 4: Simplify right side
    1,922.08x = 2,871,941.02
  5. Step 5: Solve for x
    x = 2,871,941.02/1,922.08
  6. Step 6: Final answer
    x = 1,494.18

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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.