Home / 6,980.06-9,629.75-3,994.29

Finding the Fourth Proportional to 6,980.06, 9,629.75 and 3,994.29

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Solution

The fourth proportional to 6,980.06, 9,629.75 and 3,994.29 is: 5,510.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,980.06 : 9,629.75 = 3,994.29 : x
  2. Step 2: Convert to fraction form
    6,980.06/9,629.75 = 3,994.29/x
  3. Step 3: Cross multiply
    6,980.06x = 9,629.75 × 3,994.29
  4. Step 4: Simplify right side
    6,980.06x = 38,464,024.11
  5. Step 5: Solve for x
    x = 38,464,024.11/6,980.06
  6. Step 6: Final answer
    x = 5,510.56

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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.