Home / 1,581.32-2,372.26-541.08

Finding the Fourth Proportional to 1,581.32, 2,372.26 and 541.08

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Solution

The fourth proportional to 1,581.32, 2,372.26 and 541.08 is: 811.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.32 : 2,372.26 = 541.08 : x
  2. Step 2: Convert to fraction form
    1,581.32/2,372.26 = 541.08/x
  3. Step 3: Cross multiply
    1,581.32x = 2,372.26 × 541.08
  4. Step 4: Simplify right side
    1,581.32x = 1,283,567.87
  5. Step 5: Solve for x
    x = 1,283,567.87/1,581.32
  6. Step 6: Final answer
    x = 811.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.