Home / 3,090.72-4,265.36-1,764.85

Finding the Fourth Proportional to 3,090.72, 4,265.36 and 1,764.85

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Solution

The fourth proportional to 3,090.72, 4,265.36 and 1,764.85 is: 2,435.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.72 : 4,265.36 = 1,764.85 : x
  2. Step 2: Convert to fraction form
    3,090.72/4,265.36 = 1,764.85/x
  3. Step 3: Cross multiply
    3,090.72x = 4,265.36 × 1,764.85
  4. Step 4: Simplify right side
    3,090.72x = 7,527,707.73
  5. Step 5: Solve for x
    x = 7,527,707.73/3,090.72
  6. Step 6: Final answer
    x = 2,435.59

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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.