Home / 5,355.68-8,030.08-2,578.72

Finding the Fourth Proportional to 5,355.68, 8,030.08 and 2,578.72

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Solution

The fourth proportional to 5,355.68, 8,030.08 and 2,578.72 is: 3,866.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355.68 : 8,030.08 = 2,578.72 : x
  2. Step 2: Convert to fraction form
    5,355.68/8,030.08 = 2,578.72/x
  3. Step 3: Cross multiply
    5,355.68x = 8,030.08 × 2,578.72
  4. Step 4: Simplify right side
    5,355.68x = 20,707,327.90
  5. Step 5: Solve for x
    x = 20,707,327.90/5,355.68
  6. Step 6: Final answer
    x = 3,866.42

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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.