Home / 7,190.40-10,782.08-3,292.80

Finding the Fourth Proportional to 7,190.40, 10,782.08 and 3,292.80

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Solution

The fourth proportional to 7,190.40, 10,782.08 and 3,292.80 is: 4,937.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.40 : 10,782.08 = 3,292.80 : x
  2. Step 2: Convert to fraction form
    7,190.40/10,782.08 = 3,292.80/x
  3. Step 3: Cross multiply
    7,190.40x = 10,782.08 × 3,292.80
  4. Step 4: Simplify right side
    7,190.40x = 35,503,233.02
  5. Step 5: Solve for x
    x = 35,503,233.02/7,190.40
  6. Step 6: Final answer
    x = 4,937.59

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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.