Home / 6,140.36-9,208.59-1,979.46

Finding the Fourth Proportional to 6,140.36, 9,208.59 and 1,979.46

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Solution

The fourth proportional to 6,140.36, 9,208.59 and 1,979.46 is: 2,968.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.36 : 9,208.59 = 1,979.46 : x
  2. Step 2: Convert to fraction form
    6,140.36/9,208.59 = 1,979.46/x
  3. Step 3: Cross multiply
    6,140.36x = 9,208.59 × 1,979.46
  4. Step 4: Simplify right side
    6,140.36x = 18,228,035.56
  5. Step 5: Solve for x
    x = 18,228,035.56/6,140.36
  6. Step 6: Final answer
    x = 2,968.56

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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.