Home / 3,347.20-5,021.60-1,398.32

Finding the Fourth Proportional to 3,347.20, 5,021.60 and 1,398.32

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Solution

The fourth proportional to 3,347.20, 5,021.60 and 1,398.32 is: 2,097.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.20 : 5,021.60 = 1,398.32 : x
  2. Step 2: Convert to fraction form
    3,347.20/5,021.60 = 1,398.32/x
  3. Step 3: Cross multiply
    3,347.20x = 5,021.60 × 1,398.32
  4. Step 4: Simplify right side
    3,347.20x = 7,021,803.71
  5. Step 5: Solve for x
    x = 7,021,803.71/3,347.20
  6. Step 6: Final answer
    x = 2,097.81

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.