Home / 3,087.73-4,261.02-1,690.48

Finding the Fourth Proportional to 3,087.73, 4,261.02 and 1,690.48

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Solution

The fourth proportional to 3,087.73, 4,261.02 and 1,690.48 is: 2,332.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.73 : 4,261.02 = 1,690.48 : x
  2. Step 2: Convert to fraction form
    3,087.73/4,261.02 = 1,690.48/x
  3. Step 3: Cross multiply
    3,087.73x = 4,261.02 × 1,690.48
  4. Step 4: Simplify right side
    3,087.73x = 7,203,169.09
  5. Step 5: Solve for x
    x = 7,203,169.09/3,087.73
  6. Step 6: Final answer
    x = 2,332.84

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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.