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Finding the Fourth Proportional to 4,869.64, 7,304.46 and 2,679.40

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Solution

The fourth proportional to 4,869.64, 7,304.46 and 2,679.40 is: 4,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.64 : 7,304.46 = 2,679.40 : x
  2. Step 2: Convert to fraction form
    4,869.64/7,304.46 = 2,679.40/x
  3. Step 3: Cross multiply
    4,869.64x = 7,304.46 × 2,679.40
  4. Step 4: Simplify right side
    4,869.64x = 19,571,570.12
  5. Step 5: Solve for x
    x = 19,571,570.12/4,869.64
  6. Step 6: Final answer
    x = 4,019.10

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1.5x scale

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.