Home / 4,578.90-6,317.78-2,689.86

Finding the Fourth Proportional to 4,578.90, 6,317.78 and 2,689.86

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Solution

The fourth proportional to 4,578.90, 6,317.78 and 2,689.86 is: 3,711.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,578.90 : 6,317.78 = 2,689.86 : x
  2. Step 2: Convert to fraction form
    4,578.90/6,317.78 = 2,689.86/x
  3. Step 3: Cross multiply
    4,578.90x = 6,317.78 × 2,689.86
  4. Step 4: Simplify right side
    4,578.90x = 16,993,943.71
  5. Step 5: Solve for x
    x = 16,993,943.71/4,578.90
  6. Step 6: Final answer
    x = 3,711.36

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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.