Home / 7,542.21-10,407.78-4,556.28

Finding the Fourth Proportional to 7,542.21, 10,407.78 and 4,556.28

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Solution

The fourth proportional to 7,542.21, 10,407.78 and 4,556.28 is: 6,287.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,542.21 : 10,407.78 = 4,556.28 : x
  2. Step 2: Convert to fraction form
    7,542.21/10,407.78 = 4,556.28/x
  3. Step 3: Cross multiply
    7,542.21x = 10,407.78 × 4,556.28
  4. Step 4: Simplify right side
    7,542.21x = 47,420,759.86
  5. Step 5: Solve for x
    x = 47,420,759.86/7,542.21
  6. Step 6: Final answer
    x = 6,287.38

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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.