Home / 5,164.40-7,127.90-3,068.12

Finding the Fourth Proportional to 5,164.40, 7,127.90 and 3,068.12

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Solution

The fourth proportional to 5,164.40, 7,127.90 and 3,068.12 is: 4,234.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.40 : 7,127.90 = 3,068.12 : x
  2. Step 2: Convert to fraction form
    5,164.40/7,127.90 = 3,068.12/x
  3. Step 3: Cross multiply
    5,164.40x = 7,127.90 × 3,068.12
  4. Step 4: Simplify right side
    5,164.40x = 21,869,252.55
  5. Step 5: Solve for x
    x = 21,869,252.55/5,164.40
  6. Step 6: Final answer
    x = 4,234.62

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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.