Home / 1,921.86-2,652.24-1,082.52

Finding the Fourth Proportional to 1,921.86, 2,652.24 and 1,082.52

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Solution

The fourth proportional to 1,921.86, 2,652.24 and 1,082.52 is: 1,493.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.86 : 2,652.24 = 1,082.52 : x
  2. Step 2: Convert to fraction form
    1,921.86/2,652.24 = 1,082.52/x
  3. Step 3: Cross multiply
    1,921.86x = 2,652.24 × 1,082.52
  4. Step 4: Simplify right side
    1,921.86x = 2,871,102.84
  5. Step 5: Solve for x
    x = 2,871,102.84/1,921.86
  6. Step 6: Final answer
    x = 1,493.92

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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.