Home / 4,087.16-6,131.82-1,490.30

Finding the Fourth Proportional to 4,087.16, 6,131.82 and 1,490.30

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Solution

The fourth proportional to 4,087.16, 6,131.82 and 1,490.30 is: 2,235.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.16 : 6,131.82 = 1,490.30 : x
  2. Step 2: Convert to fraction form
    4,087.16/6,131.82 = 1,490.30/x
  3. Step 3: Cross multiply
    4,087.16x = 6,131.82 × 1,490.30
  4. Step 4: Simplify right side
    4,087.16x = 9,138,251.35
  5. Step 5: Solve for x
    x = 9,138,251.35/4,087.16
  6. Step 6: Final answer
    x = 2,235.84

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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.