Home / 7,512.78-10,367.58-4,200.78

Finding the Fourth Proportional to 7,512.78, 10,367.58 and 4,200.78

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Solution

The fourth proportional to 7,512.78, 10,367.58 and 4,200.78 is: 5,797.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,512.78 : 10,367.58 = 4,200.78 : x
  2. Step 2: Convert to fraction form
    7,512.78/10,367.58 = 4,200.78/x
  3. Step 3: Cross multiply
    7,512.78x = 10,367.58 × 4,200.78
  4. Step 4: Simplify right side
    7,512.78x = 43,551,922.71
  5. Step 5: Solve for x
    x = 43,551,922.71/7,512.78
  6. Step 6: Final answer
    x = 5,797.04

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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.