Home / 3,087.62-4,261.02-1,690.46

Finding the Fourth Proportional to 3,087.62, 4,261.02 and 1,690.46

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Solution

The fourth proportional to 3,087.62, 4,261.02 and 1,690.46 is: 2,332.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.62 : 4,261.02 = 1,690.46 : x
  2. Step 2: Convert to fraction form
    3,087.62/4,261.02 = 1,690.46/x
  3. Step 3: Cross multiply
    3,087.62x = 4,261.02 × 1,690.46
  4. Step 4: Simplify right side
    3,087.62x = 7,203,083.87
  5. Step 5: Solve for x
    x = 7,203,083.87/3,087.62
  6. Step 6: Final answer
    x = 2,332.89

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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.