Home / 4,845.30-6,689.72-3,724.20

Finding the Fourth Proportional to 4,845.30, 6,689.72 and 3,724.20

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Solution

The fourth proportional to 4,845.30, 6,689.72 and 3,724.20 is: 5,141.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,845.30 : 6,689.72 = 3,724.20 : x
  2. Step 2: Convert to fraction form
    4,845.30/6,689.72 = 3,724.20/x
  3. Step 3: Cross multiply
    4,845.30x = 6,689.72 × 3,724.20
  4. Step 4: Simplify right side
    4,845.30x = 24,913,855.22
  5. Step 5: Solve for x
    x = 24,913,855.22/4,845.30
  6. Step 6: Final answer
    x = 5,141.86

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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.