Home / 2,926.41-4,389.61-1,172.20

Finding the Fourth Proportional to 2,926.41, 4,389.61 and 1,172.20

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Solution

The fourth proportional to 2,926.41, 4,389.61 and 1,172.20 is: 1,758.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.41 : 4,389.61 = 1,172.20 : x
  2. Step 2: Convert to fraction form
    2,926.41/4,389.61 = 1,172.20/x
  3. Step 3: Cross multiply
    2,926.41x = 4,389.61 × 1,172.20
  4. Step 4: Simplify right side
    2,926.41x = 5,145,497.37
  5. Step 5: Solve for x
    x = 5,145,497.37/2,926.41
  6. Step 6: Final answer
    x = 1,758.30

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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.