Home / 6,378.72-9,564.38-2,478.58

Finding the Fourth Proportional to 6,378.72, 9,564.38 and 2,478.58

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Solution

The fourth proportional to 6,378.72, 9,564.38 and 2,478.58 is: 3,716.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.72 : 9,564.38 = 2,478.58 : x
  2. Step 2: Convert to fraction form
    6,378.72/9,564.38 = 2,478.58/x
  3. Step 3: Cross multiply
    6,378.72x = 9,564.38 × 2,478.58
  4. Step 4: Simplify right side
    6,378.72x = 23,706,080.98
  5. Step 5: Solve for x
    x = 23,706,080.98/6,378.72
  6. Step 6: Final answer
    x = 3,716.43

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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.