Home / 5,615.34-7,750.09-3,378.45

Finding the Fourth Proportional to 5,615.34, 7,750.09 and 3,378.45

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Solution

The fourth proportional to 5,615.34, 7,750.09 and 3,378.45 is: 4,662.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.34 : 7,750.09 = 3,378.45 : x
  2. Step 2: Convert to fraction form
    5,615.34/7,750.09 = 3,378.45/x
  3. Step 3: Cross multiply
    5,615.34x = 7,750.09 × 3,378.45
  4. Step 4: Simplify right side
    5,615.34x = 26,183,291.56
  5. Step 5: Solve for x
    x = 26,183,291.56/5,615.34
  6. Step 6: Final answer
    x = 4,662.81

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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.