Home / 5,615.31-7,749.14-3,377.21

Finding the Fourth Proportional to 5,615.31, 7,749.14 and 3,377.21

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Solution

The fourth proportional to 5,615.31, 7,749.14 and 3,377.21 is: 4,660.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.31 : 7,749.14 = 3,377.21 : x
  2. Step 2: Convert to fraction form
    5,615.31/7,749.14 = 3,377.21/x
  3. Step 3: Cross multiply
    5,615.31x = 7,749.14 × 3,377.21
  4. Step 4: Simplify right side
    5,615.31x = 26,170,473.10
  5. Step 5: Solve for x
    x = 26,170,473.10/5,615.31
  6. Step 6: Final answer
    x = 4,660.56

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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.