Home / 4,355.05-6,531.21-1,581.21

Finding the Fourth Proportional to 4,355.05, 6,531.21 and 1,581.21

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Solution

The fourth proportional to 4,355.05, 6,531.21 and 1,581.21 is: 2,371.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,355.05 : 6,531.21 = 1,581.21 : x
  2. Step 2: Convert to fraction form
    4,355.05/6,531.21 = 1,581.21/x
  3. Step 3: Cross multiply
    4,355.05x = 6,531.21 × 1,581.21
  4. Step 4: Simplify right side
    4,355.05x = 10,327,214.56
  5. Step 5: Solve for x
    x = 10,327,214.56/4,355.05
  6. Step 6: Final answer
    x = 2,371.32

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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.