Home / 3,087.44-4,260.96-1,690.40

Finding the Fourth Proportional to 3,087.44, 4,260.96 and 1,690.40

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Solution

The fourth proportional to 3,087.44, 4,260.96 and 1,690.40 is: 2,332.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.44 : 4,260.96 = 1,690.40 : x
  2. Step 2: Convert to fraction form
    3,087.44/4,260.96 = 1,690.40/x
  3. Step 3: Cross multiply
    3,087.44x = 4,260.96 × 1,690.40
  4. Step 4: Simplify right side
    3,087.44x = 7,202,726.78
  5. Step 5: Solve for x
    x = 7,202,726.78/3,087.44
  6. Step 6: Final answer
    x = 2,332.91

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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.