Home / 5,720.31-8,578.64-2,946.62

Finding the Fourth Proportional to 5,720.31, 8,578.64 and 2,946.62

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Solution

The fourth proportional to 5,720.31, 8,578.64 and 2,946.62 is: 4,418.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.31 : 8,578.64 = 2,946.62 : x
  2. Step 2: Convert to fraction form
    5,720.31/8,578.64 = 2,946.62/x
  3. Step 3: Cross multiply
    5,720.31x = 8,578.64 × 2,946.62
  4. Step 4: Simplify right side
    5,720.31x = 25,277,934.57
  5. Step 5: Solve for x
    x = 25,277,934.57/5,720.31
  6. Step 6: Final answer
    x = 4,418.98

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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.