Home / 5,608.35-7,740.69-3,720.06

Finding the Fourth Proportional to 5,608.35, 7,740.69 and 3,720.06

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Solution

The fourth proportional to 5,608.35, 7,740.69 and 3,720.06 is: 5,134.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,608.35 : 7,740.69 = 3,720.06 : x
  2. Step 2: Convert to fraction form
    5,608.35/7,740.69 = 3,720.06/x
  3. Step 3: Cross multiply
    5,608.35x = 7,740.69 × 3,720.06
  4. Step 4: Simplify right side
    5,608.35x = 28,795,831.24
  5. Step 5: Solve for x
    x = 28,795,831.24/5,608.35
  6. Step 6: Final answer
    x = 5,134.46

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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.