Home / 1,914.80-2,643.28-1,472.54

Finding the Fourth Proportional to 1,914.80, 2,643.28 and 1,472.54

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Solution

The fourth proportional to 1,914.80, 2,643.28 and 1,472.54 is: 2,032.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.80 : 2,643.28 = 1,472.54 : x
  2. Step 2: Convert to fraction form
    1,914.80/2,643.28 = 1,472.54/x
  3. Step 3: Cross multiply
    1,914.80x = 2,643.28 × 1,472.54
  4. Step 4: Simplify right side
    1,914.80x = 3,892,335.53
  5. Step 5: Solve for x
    x = 3,892,335.53/1,914.80
  6. Step 6: Final answer
    x = 2,032.76

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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.