Home / 2,149.21-2,966.54-1,403.28

Finding the Fourth Proportional to 2,149.21, 2,966.54 and 1,403.28

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Solution

The fourth proportional to 2,149.21, 2,966.54 and 1,403.28 is: 1,936.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.21 : 2,966.54 = 1,403.28 : x
  2. Step 2: Convert to fraction form
    2,149.21/2,966.54 = 1,403.28/x
  3. Step 3: Cross multiply
    2,149.21x = 2,966.54 × 1,403.28
  4. Step 4: Simplify right side
    2,149.21x = 4,162,895.47
  5. Step 5: Solve for x
    x = 4,162,895.47/2,149.21
  6. Step 6: Final answer
    x = 1,936.94

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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.