Home / 2,634.87-3,635.60-1,587

Finding the Fourth Proportional to 2,634.87, 3,635.60 and 1,587

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Solution

The fourth proportional to 2,634.87, 3,635.60 and 1,587 is: 2,189.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,634.87 : 3,635.60 = 1,587 : x
  2. Step 2: Convert to fraction form
    2,634.87/3,635.60 = 1,587/x
  3. Step 3: Cross multiply
    2,634.87x = 3,635.60 × 1,587
  4. Step 4: Simplify right side
    2,634.87x = 5,769,689.27
  5. Step 5: Solve for x
    x = 5,769,689.27/2,634.87
  6. Step 6: Final answer
    x = 2,189.74

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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.