Home / 5,127.75-7,690.94-2,005.58

Finding the Fourth Proportional to 5,127.75, 7,690.94 and 2,005.58

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Solution

The fourth proportional to 5,127.75, 7,690.94 and 2,005.58 is: 3,008.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.75 : 7,690.94 = 2,005.58 : x
  2. Step 2: Convert to fraction form
    5,127.75/7,690.94 = 2,005.58/x
  3. Step 3: Cross multiply
    5,127.75x = 7,690.94 × 2,005.58
  4. Step 4: Simplify right side
    5,127.75x = 15,424,812.17
  5. Step 5: Solve for x
    x = 15,424,812.17/5,127.75
  6. Step 6: Final answer
    x = 3,008.11

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1.5x scale

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.