Home / 5,778.68-8,669.52-1,618.70

Finding the Fourth Proportional to 5,778.68, 8,669.52 and 1,618.70

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Solution

The fourth proportional to 5,778.68, 8,669.52 and 1,618.70 is: 2,428.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.68 : 8,669.52 = 1,618.70 : x
  2. Step 2: Convert to fraction form
    5,778.68/8,669.52 = 1,618.70/x
  3. Step 3: Cross multiply
    5,778.68x = 8,669.52 × 1,618.70
  4. Step 4: Simplify right side
    5,778.68x = 14,033,308.68
  5. Step 5: Solve for x
    x = 14,033,308.68/5,778.68
  6. Step 6: Final answer
    x = 2,428.46

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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.