Home / 1,921.98-2,652.27-1,082.76

Finding the Fourth Proportional to 1,921.98, 2,652.27 and 1,082.76

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Solution

The fourth proportional to 1,921.98, 2,652.27 and 1,082.76 is: 1,494.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.98 : 2,652.27 = 1,082.76 : x
  2. Step 2: Convert to fraction form
    1,921.98/2,652.27 = 1,082.76/x
  3. Step 3: Cross multiply
    1,921.98x = 2,652.27 × 1,082.76
  4. Step 4: Simplify right side
    1,921.98x = 2,871,771.87
  5. Step 5: Solve for x
    x = 2,871,771.87/1,921.98
  6. Step 6: Final answer
    x = 1,494.17

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Double scale
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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.