Home / 2,647.76-3,967.80-1,491.04

Finding the Fourth Proportional to 2,647.76, 3,967.80 and 1,491.04

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Solution

The fourth proportional to 2,647.76, 3,967.80 and 1,491.04 is: 2,234.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647.76 : 3,967.80 = 1,491.04 : x
  2. Step 2: Convert to fraction form
    2,647.76/3,967.80 = 1,491.04/x
  3. Step 3: Cross multiply
    2,647.76x = 3,967.80 × 1,491.04
  4. Step 4: Simplify right side
    2,647.76x = 5,916,148.51
  5. Step 5: Solve for x
    x = 5,916,148.51/2,647.76
  6. Step 6: Final answer
    x = 2,234.40

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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.