Home / 5,639.04-7,781.10-3,370.37

Finding the Fourth Proportional to 5,639.04, 7,781.10 and 3,370.37

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Solution

The fourth proportional to 5,639.04, 7,781.10 and 3,370.37 is: 4,650.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.04 : 7,781.10 = 3,370.37 : x
  2. Step 2: Convert to fraction form
    5,639.04/7,781.10 = 3,370.37/x
  3. Step 3: Cross multiply
    5,639.04x = 7,781.10 × 3,370.37
  4. Step 4: Simplify right side
    5,639.04x = 26,225,147.10
  5. Step 5: Solve for x
    x = 26,225,147.10/5,639.04
  6. Step 6: Final answer
    x = 4,650.64

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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.