Home / 2,581.21-3,562.08-1,402.28

Finding the Fourth Proportional to 2,581.21, 3,562.08 and 1,402.28

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Solution

The fourth proportional to 2,581.21, 3,562.08 and 1,402.28 is: 1,935.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581.21 : 3,562.08 = 1,402.28 : x
  2. Step 2: Convert to fraction form
    2,581.21/3,562.08 = 1,402.28/x
  3. Step 3: Cross multiply
    2,581.21x = 3,562.08 × 1,402.28
  4. Step 4: Simplify right side
    2,581.21x = 4,995,033.54
  5. Step 5: Solve for x
    x = 4,995,033.54/2,581.21
  6. Step 6: Final answer
    x = 1,935.15

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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.