Home / 7,342.21-10,132.27-4,198.40

Finding the Fourth Proportional to 7,342.21, 10,132.27 and 4,198.40

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Solution

The fourth proportional to 7,342.21, 10,132.27 and 4,198.40 is: 5,793.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.21 : 10,132.27 = 4,198.40 : x
  2. Step 2: Convert to fraction form
    7,342.21/10,132.27 = 4,198.40/x
  3. Step 3: Cross multiply
    7,342.21x = 10,132.27 × 4,198.40
  4. Step 4: Simplify right side
    7,342.21x = 42,539,276.05
  5. Step 5: Solve for x
    x = 42,539,276.05/7,342.21
  6. Step 6: Final answer
    x = 5,793.80

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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.