Home / 7,651.28-11,478.36-2,456.48

Finding the Fourth Proportional to 7,651.28, 11,478.36 and 2,456.48

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Solution

The fourth proportional to 7,651.28, 11,478.36 and 2,456.48 is: 3,685.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,651.28 : 11,478.36 = 2,456.48 : x
  2. Step 2: Convert to fraction form
    7,651.28/11,478.36 = 2,456.48/x
  3. Step 3: Cross multiply
    7,651.28x = 11,478.36 × 2,456.48
  4. Step 4: Simplify right side
    7,651.28x = 28,196,361.77
  5. Step 5: Solve for x
    x = 28,196,361.77/7,651.28
  6. Step 6: Final answer
    x = 3,685.18

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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.