Home / 6,617.02-9,920.80-3,105.06

Finding the Fourth Proportional to 6,617.02, 9,920.80 and 3,105.06

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Solution

The fourth proportional to 6,617.02, 9,920.80 and 3,105.06 is: 4,655.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617.02 : 9,920.80 = 3,105.06 : x
  2. Step 2: Convert to fraction form
    6,617.02/9,920.80 = 3,105.06/x
  3. Step 3: Cross multiply
    6,617.02x = 9,920.80 × 3,105.06
  4. Step 4: Simplify right side
    6,617.02x = 30,804,679.25
  5. Step 5: Solve for x
    x = 30,804,679.25/6,617.02
  6. Step 6: Final answer
    x = 4,655.37

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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.