Home / 6,310.90-8,709.88-3,623.18

Finding the Fourth Proportional to 6,310.90, 8,709.88 and 3,623.18

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Solution

The fourth proportional to 6,310.90, 8,709.88 and 3,623.18 is: 5,000.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,310.90 : 8,709.88 = 3,623.18 : x
  2. Step 2: Convert to fraction form
    6,310.90/8,709.88 = 3,623.18/x
  3. Step 3: Cross multiply
    6,310.90x = 8,709.88 × 3,623.18
  4. Step 4: Simplify right side
    6,310.90x = 31,557,463.02
  5. Step 5: Solve for x
    x = 31,557,463.02/6,310.90
  6. Step 6: Final answer
    x = 5,000.47

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1.5x scale

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.