Home / 7,080.89-9,771.37-3,937.01

Finding the Fourth Proportional to 7,080.89, 9,771.37 and 3,937.01

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Solution

The fourth proportional to 7,080.89, 9,771.37 and 3,937.01 is: 5,432.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.89 : 9,771.37 = 3,937.01 : x
  2. Step 2: Convert to fraction form
    7,080.89/9,771.37 = 3,937.01/x
  3. Step 3: Cross multiply
    7,080.89x = 9,771.37 × 3,937.01
  4. Step 4: Simplify right side
    7,080.89x = 38,469,922.70
  5. Step 5: Solve for x
    x = 38,469,922.70/7,080.89
  6. Step 6: Final answer
    x = 5,432.93

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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.