Home / 1,921.10-2,652.44-1,472.18

Finding the Fourth Proportional to 1,921.10, 2,652.44 and 1,472.18

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Solution

The fourth proportional to 1,921.10, 2,652.44 and 1,472.18 is: 2,032.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.10 : 2,652.44 = 1,472.18 : x
  2. Step 2: Convert to fraction form
    1,921.10/2,652.44 = 1,472.18/x
  3. Step 3: Cross multiply
    1,921.10x = 2,652.44 × 1,472.18
  4. Step 4: Simplify right side
    1,921.10x = 3,904,868.39
  5. Step 5: Solve for x
    x = 3,904,868.39/1,921.10
  6. Step 6: Final answer
    x = 2,032.63

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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.