Home / 3,319.02-4,978.29-1,238.22

Finding the Fourth Proportional to 3,319.02, 4,978.29 and 1,238.22

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Solution

The fourth proportional to 3,319.02, 4,978.29 and 1,238.22 is: 1,857.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.02 : 4,978.29 = 1,238.22 : x
  2. Step 2: Convert to fraction form
    3,319.02/4,978.29 = 1,238.22/x
  3. Step 3: Cross multiply
    3,319.02x = 4,978.29 × 1,238.22
  4. Step 4: Simplify right side
    3,319.02x = 6,164,218.24
  5. Step 5: Solve for x
    x = 6,164,218.24/3,319.02
  6. Step 6: Final answer
    x = 1,857.24

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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.