Home / 6,290.85-9,438.50-3,519.90

Finding the Fourth Proportional to 6,290.85, 9,438.50 and 3,519.90

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Solution

The fourth proportional to 6,290.85, 9,438.50 and 3,519.90 is: 5,281.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.85 : 9,438.50 = 3,519.90 : x
  2. Step 2: Convert to fraction form
    6,290.85/9,438.50 = 3,519.90/x
  3. Step 3: Cross multiply
    6,290.85x = 9,438.50 × 3,519.90
  4. Step 4: Simplify right side
    6,290.85x = 33,222,582.15
  5. Step 5: Solve for x
    x = 33,222,582.15/6,290.85
  6. Step 6: Final answer
    x = 5,281.10

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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.