Home / 3,547.75-5,321.72-1,239.25

Finding the Fourth Proportional to 3,547.75, 5,321.72 and 1,239.25

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Solution

The fourth proportional to 3,547.75, 5,321.72 and 1,239.25 is: 1,858.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.75 : 5,321.72 = 1,239.25 : x
  2. Step 2: Convert to fraction form
    3,547.75/5,321.72 = 1,239.25/x
  3. Step 3: Cross multiply
    3,547.75x = 5,321.72 × 1,239.25
  4. Step 4: Simplify right side
    3,547.75x = 6,594,935.31
  5. Step 5: Solve for x
    x = 6,594,935.31/3,547.75
  6. Step 6: Final answer
    x = 1,858.91

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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.