Home / 3,087.76-4,631.63-1,237.56

Finding the Fourth Proportional to 3,087.76, 4,631.63 and 1,237.56

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Solution

The fourth proportional to 3,087.76, 4,631.63 and 1,237.56 is: 1,856.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.76 : 4,631.63 = 1,237.56 : x
  2. Step 2: Convert to fraction form
    3,087.76/4,631.63 = 1,237.56/x
  3. Step 3: Cross multiply
    3,087.76x = 4,631.63 × 1,237.56
  4. Step 4: Simplify right side
    3,087.76x = 5,731,920.02
  5. Step 5: Solve for x
    x = 5,731,920.02/3,087.76
  6. Step 6: Final answer
    x = 1,856.34

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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.