Home / 2,631.60-3,952.86-2,087.58

Finding the Fourth Proportional to 2,631.60, 3,952.86 and 2,087.58

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Solution

The fourth proportional to 2,631.60, 3,952.86 and 2,087.58 is: 3,135.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.60 : 3,952.86 = 2,087.58 : x
  2. Step 2: Convert to fraction form
    2,631.60/3,952.86 = 2,087.58/x
  3. Step 3: Cross multiply
    2,631.60x = 3,952.86 × 2,087.58
  4. Step 4: Simplify right side
    2,631.60x = 8,251,911.48
  5. Step 5: Solve for x
    x = 8,251,911.48/2,631.60
  6. Step 6: Final answer
    x = 3,135.70

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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.