Home / 3,578.20-5,368.90-1,629.40

Finding the Fourth Proportional to 3,578.20, 5,368.90 and 1,629.40

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Solution

The fourth proportional to 3,578.20, 5,368.90 and 1,629.40 is: 2,444.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.20 : 5,368.90 = 1,629.40 : x
  2. Step 2: Convert to fraction form
    3,578.20/5,368.90 = 1,629.40/x
  3. Step 3: Cross multiply
    3,578.20x = 5,368.90 × 1,629.40
  4. Step 4: Simplify right side
    3,578.20x = 8,748,085.66
  5. Step 5: Solve for x
    x = 8,748,085.66/3,578.20
  6. Step 6: Final answer
    x = 2,444.83

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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.