Home / 3,087.52-4,631.58-1,139.27

Finding the Fourth Proportional to 3,087.52, 4,631.58 and 1,139.27

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Solution

The fourth proportional to 3,087.52, 4,631.58 and 1,139.27 is: 1,709.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.52 : 4,631.58 = 1,139.27 : x
  2. Step 2: Convert to fraction form
    3,087.52/4,631.58 = 1,139.27/x
  3. Step 3: Cross multiply
    3,087.52x = 4,631.58 × 1,139.27
  4. Step 4: Simplify right side
    3,087.52x = 5,276,596.99
  5. Step 5: Solve for x
    x = 5,276,596.99/3,087.52
  6. Step 6: Final answer
    x = 1,709.01

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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.