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Finding the Fourth Proportional to 7,018.04, 9,684.62 and 3,874.20

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Solution

The fourth proportional to 7,018.04, 9,684.62 and 3,874.20 is: 5,346.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.04 : 9,684.62 = 3,874.20 : x
  2. Step 2: Convert to fraction form
    7,018.04/9,684.62 = 3,874.20/x
  3. Step 3: Cross multiply
    7,018.04x = 9,684.62 × 3,874.20
  4. Step 4: Simplify right side
    7,018.04x = 37,520,154.80
  5. Step 5: Solve for x
    x = 37,520,154.80/7,018.04
  6. Step 6: Final answer
    x = 5,346.24

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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.