Home / 5,087.85-7,631.04-1,969.34

Finding the Fourth Proportional to 5,087.85, 7,631.04 and 1,969.34

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Solution

The fourth proportional to 5,087.85, 7,631.04 and 1,969.34 is: 2,953.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.85 : 7,631.04 = 1,969.34 : x
  2. Step 2: Convert to fraction form
    5,087.85/7,631.04 = 1,969.34/x
  3. Step 3: Cross multiply
    5,087.85x = 7,631.04 × 1,969.34
  4. Step 4: Simplify right side
    5,087.85x = 15,028,074.16
  5. Step 5: Solve for x
    x = 15,028,074.16/5,087.85
  6. Step 6: Final answer
    x = 2,953.72

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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.