Home / 5,116.40-7,672.80-2,344.40

Finding the Fourth Proportional to 5,116.40, 7,672.80 and 2,344.40

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Solution

The fourth proportional to 5,116.40, 7,672.80 and 2,344.40 is: 3,515.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.40 : 7,672.80 = 2,344.40 : x
  2. Step 2: Convert to fraction form
    5,116.40/7,672.80 = 2,344.40/x
  3. Step 3: Cross multiply
    5,116.40x = 7,672.80 × 2,344.40
  4. Step 4: Simplify right side
    5,116.40x = 17,988,112.32
  5. Step 5: Solve for x
    x = 17,988,112.32/5,116.40
  6. Step 6: Final answer
    x = 3,515.78

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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.