Home / 5,087.63-7,631.91-1,577.66

Finding the Fourth Proportional to 5,087.63, 7,631.91 and 1,577.66

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Solution

The fourth proportional to 5,087.63, 7,631.91 and 1,577.66 is: 2,366.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.63 : 7,631.91 = 1,577.66 : x
  2. Step 2: Convert to fraction form
    5,087.63/7,631.91 = 1,577.66/x
  3. Step 3: Cross multiply
    5,087.63x = 7,631.91 × 1,577.66
  4. Step 4: Simplify right side
    5,087.63x = 12,040,559.13
  5. Step 5: Solve for x
    x = 12,040,559.13/5,087.63
  6. Step 6: Final answer
    x = 2,366.63

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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.