Home / 6,090.80-9,139.68-3,317.36

Finding the Fourth Proportional to 6,090.80, 9,139.68 and 3,317.36

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Solution

The fourth proportional to 6,090.80, 9,139.68 and 3,317.36 is: 4,977.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,090.80 : 9,139.68 = 3,317.36 : x
  2. Step 2: Convert to fraction form
    6,090.80/9,139.68 = 3,317.36/x
  3. Step 3: Cross multiply
    6,090.80x = 9,139.68 × 3,317.36
  4. Step 4: Simplify right side
    6,090.80x = 30,319,608.84
  5. Step 5: Solve for x
    x = 30,319,608.84/6,090.80
  6. Step 6: Final answer
    x = 4,977.94

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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.