Home / 7,090.76-9,785.50-3,904.44

Finding the Fourth Proportional to 7,090.76, 9,785.50 and 3,904.44

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Solution

The fourth proportional to 7,090.76, 9,785.50 and 3,904.44 is: 5,388.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.76 : 9,785.50 = 3,904.44 : x
  2. Step 2: Convert to fraction form
    7,090.76/9,785.50 = 3,904.44/x
  3. Step 3: Cross multiply
    7,090.76x = 9,785.50 × 3,904.44
  4. Step 4: Simplify right side
    7,090.76x = 38,206,897.62
  5. Step 5: Solve for x
    x = 38,206,897.62/7,090.76
  6. Step 6: Final answer
    x = 5,388.27

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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.