Home / 3,121.41-4,681.55-1,366.07

Finding the Fourth Proportional to 3,121.41, 4,681.55 and 1,366.07

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Solution

The fourth proportional to 3,121.41, 4,681.55 and 1,366.07 is: 2,048.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.41 : 4,681.55 = 1,366.07 : x
  2. Step 2: Convert to fraction form
    3,121.41/4,681.55 = 1,366.07/x
  3. Step 3: Cross multiply
    3,121.41x = 4,681.55 × 1,366.07
  4. Step 4: Simplify right side
    3,121.41x = 6,395,325.01
  5. Step 5: Solve for x
    x = 6,395,325.01/3,121.41
  6. Step 6: Final answer
    x = 2,048.86

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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.