Home / 7,290.80-10,910.28-4,197.68

Finding the Fourth Proportional to 7,290.80, 10,910.28 and 4,197.68

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Solution

The fourth proportional to 7,290.80, 10,910.28 and 4,197.68 is: 6,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,290.80 : 10,910.28 = 4,197.68 : x
  2. Step 2: Convert to fraction form
    7,290.80/10,910.28 = 4,197.68/x
  3. Step 3: Cross multiply
    7,290.80x = 10,910.28 × 4,197.68
  4. Step 4: Simplify right side
    7,290.80x = 45,797,864.15
  5. Step 5: Solve for x
    x = 45,797,864.15/7,290.80
  6. Step 6: Final answer
    x = 6,281.60

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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.