Home / 3,110.02-4,292.27-1,990.60

Finding the Fourth Proportional to 3,110.02, 4,292.27 and 1,990.60

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Solution

The fourth proportional to 3,110.02, 4,292.27 and 1,990.60 is: 2,747.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.02 : 4,292.27 = 1,990.60 : x
  2. Step 2: Convert to fraction form
    3,110.02/4,292.27 = 1,990.60/x
  3. Step 3: Cross multiply
    3,110.02x = 4,292.27 × 1,990.60
  4. Step 4: Simplify right side
    3,110.02x = 8,544,192.66
  5. Step 5: Solve for x
    x = 8,544,192.66/3,110.02
  6. Step 6: Final answer
    x = 2,747.31

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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.