Home / 7,556.25-10,429.28-4,200.21

Finding the Fourth Proportional to 7,556.25, 10,429.28 and 4,200.21

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Solution

The fourth proportional to 7,556.25, 10,429.28 and 4,200.21 is: 5,797.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,556.25 : 10,429.28 = 4,200.21 : x
  2. Step 2: Convert to fraction form
    7,556.25/10,429.28 = 4,200.21/x
  3. Step 3: Cross multiply
    7,556.25x = 10,429.28 × 4,200.21
  4. Step 4: Simplify right side
    7,556.25x = 43,805,166.15
  5. Step 5: Solve for x
    x = 43,805,166.15/7,556.25
  6. Step 6: Final answer
    x = 5,797.21

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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.