Home / 4,185.86-5,775.81-2,417.21

Finding the Fourth Proportional to 4,185.86, 5,775.81 and 2,417.21

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Solution

The fourth proportional to 4,185.86, 5,775.81 and 2,417.21 is: 3,335.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.86 : 5,775.81 = 2,417.21 : x
  2. Step 2: Convert to fraction form
    4,185.86/5,775.81 = 2,417.21/x
  3. Step 3: Cross multiply
    4,185.86x = 5,775.81 × 2,417.21
  4. Step 4: Simplify right side
    4,185.86x = 13,961,345.69
  5. Step 5: Solve for x
    x = 13,961,345.69/4,185.86
  6. Step 6: Final answer
    x = 3,335.36

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.