Home / 3,087.59-4,260.83-2,157.71

Finding the Fourth Proportional to 3,087.59, 4,260.83 and 2,157.71

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Solution

The fourth proportional to 3,087.59, 4,260.83 and 2,157.71 is: 2,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.59 : 4,260.83 = 2,157.71 : x
  2. Step 2: Convert to fraction form
    3,087.59/4,260.83 = 2,157.71/x
  3. Step 3: Cross multiply
    3,087.59x = 4,260.83 × 2,157.71
  4. Step 4: Simplify right side
    3,087.59x = 9,193,603.41
  5. Step 5: Solve for x
    x = 9,193,603.41/3,087.59
  6. Step 6: Final answer
    x = 2,977.60

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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.