Home / 5,537.68-7,643.50-3,181.40

Finding the Fourth Proportional to 5,537.68, 7,643.50 and 3,181.40

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Solution

The fourth proportional to 5,537.68, 7,643.50 and 3,181.40 is: 4,391.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,537.68 : 7,643.50 = 3,181.40 : x
  2. Step 2: Convert to fraction form
    5,537.68/7,643.50 = 3,181.40/x
  3. Step 3: Cross multiply
    5,537.68x = 7,643.50 × 3,181.40
  4. Step 4: Simplify right side
    5,537.68x = 24,317,030.90
  5. Step 5: Solve for x
    x = 24,317,030.90/5,537.68
  6. Step 6: Final answer
    x = 4,391.19

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Why These Related Problems?

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