Home / 3,425.95-5,131.05-2,176.45

Finding the Fourth Proportional to 3,425.95, 5,131.05 and 2,176.45

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Solution

The fourth proportional to 3,425.95, 5,131.05 and 2,176.45 is: 3,259.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.95 : 5,131.05 = 2,176.45 : x
  2. Step 2: Convert to fraction form
    3,425.95/5,131.05 = 2,176.45/x
  3. Step 3: Cross multiply
    3,425.95x = 5,131.05 × 2,176.45
  4. Step 4: Simplify right side
    3,425.95x = 11,167,442.68
  5. Step 5: Solve for x
    x = 11,167,442.68/3,425.95
  6. Step 6: Final answer
    x = 3,259.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.