Home / 6,739.89-9,306.03-4,090.87

Finding the Fourth Proportional to 6,739.89, 9,306.03 and 4,090.87

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Solution

The fourth proportional to 6,739.89, 9,306.03 and 4,090.87 is: 5,648.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,739.89 : 9,306.03 = 4,090.87 : x
  2. Step 2: Convert to fraction form
    6,739.89/9,306.03 = 4,090.87/x
  3. Step 3: Cross multiply
    6,739.89x = 9,306.03 × 4,090.87
  4. Step 4: Simplify right side
    6,739.89x = 38,069,758.95
  5. Step 5: Solve for x
    x = 38,069,758.95/6,739.89
  6. Step 6: Final answer
    x = 5,648.42

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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.