Home / 5,608.72-7,740.18-3,090.76

Finding the Fourth Proportional to 5,608.72, 7,740.18 and 3,090.76

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Solution

The fourth proportional to 5,608.72, 7,740.18 and 3,090.76 is: 4,265.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,608.72 : 7,740.18 = 3,090.76 : x
  2. Step 2: Convert to fraction form
    5,608.72/7,740.18 = 3,090.76/x
  3. Step 3: Cross multiply
    5,608.72x = 7,740.18 × 3,090.76
  4. Step 4: Simplify right side
    5,608.72x = 23,923,038.74
  5. Step 5: Solve for x
    x = 23,923,038.74/5,608.72
  6. Step 6: Final answer
    x = 4,265.33

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1.5x scale

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.