Home / 3,218.22-4,822.40-1,570.68

Finding the Fourth Proportional to 3,218.22, 4,822.40 and 1,570.68

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Solution

The fourth proportional to 3,218.22, 4,822.40 and 1,570.68 is: 2,353.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.22 : 4,822.40 = 1,570.68 : x
  2. Step 2: Convert to fraction form
    3,218.22/4,822.40 = 1,570.68/x
  3. Step 3: Cross multiply
    3,218.22x = 4,822.40 × 1,570.68
  4. Step 4: Simplify right side
    3,218.22x = 7,574,447.23
  5. Step 5: Solve for x
    x = 7,574,447.23/3,218.22
  6. Step 6: Final answer
    x = 2,353.61

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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.