Home / 5,127.10-7,690.34-1,839.31

Finding the Fourth Proportional to 5,127.10, 7,690.34 and 1,839.31

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Solution

The fourth proportional to 5,127.10, 7,690.34 and 1,839.31 is: 2,758.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.10 : 7,690.34 = 1,839.31 : x
  2. Step 2: Convert to fraction form
    5,127.10/7,690.34 = 1,839.31/x
  3. Step 3: Cross multiply
    5,127.10x = 7,690.34 × 1,839.31
  4. Step 4: Simplify right side
    5,127.10x = 14,144,904.64
  5. Step 5: Solve for x
    x = 14,144,904.64/5,127.10
  6. Step 6: Final answer
    x = 2,758.85

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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.