Home / 3,218.40-4,829.13-1,574.06

Finding the Fourth Proportional to 3,218.40, 4,829.13 and 1,574.06

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Solution

The fourth proportional to 3,218.40, 4,829.13 and 1,574.06 is: 2,361.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.40 : 4,829.13 = 1,574.06 : x
  2. Step 2: Convert to fraction form
    3,218.40/4,829.13 = 1,574.06/x
  3. Step 3: Cross multiply
    3,218.40x = 4,829.13 × 1,574.06
  4. Step 4: Simplify right side
    3,218.40x = 7,601,316.22
  5. Step 5: Solve for x
    x = 7,601,316.22/3,218.40
  6. Step 6: Final answer
    x = 2,361.83

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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.