Home / 1,711.85-2,563.84-1,087.10

Finding the Fourth Proportional to 1,711.85, 2,563.84 and 1,087.10

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Solution

The fourth proportional to 1,711.85, 2,563.84 and 1,087.10 is: 1,628.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.85 : 2,563.84 = 1,087.10 : x
  2. Step 2: Convert to fraction form
    1,711.85/2,563.84 = 1,087.10/x
  3. Step 3: Cross multiply
    1,711.85x = 2,563.84 × 1,087.10
  4. Step 4: Simplify right side
    1,711.85x = 2,787,142.50
  5. Step 5: Solve for x
    x = 2,787,142.50/1,711.85
  6. Step 6: Final answer
    x = 1,628.15

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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.