Home / 3,422.34-5,130.26-1,475.90

Finding the Fourth Proportional to 3,422.34, 5,130.26 and 1,475.90

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Solution

The fourth proportional to 3,422.34, 5,130.26 and 1,475.90 is: 2,212.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.34 : 5,130.26 = 1,475.90 : x
  2. Step 2: Convert to fraction form
    3,422.34/5,130.26 = 1,475.90/x
  3. Step 3: Cross multiply
    3,422.34x = 5,130.26 × 1,475.90
  4. Step 4: Simplify right side
    3,422.34x = 7,571,750.73
  5. Step 5: Solve for x
    x = 7,571,750.73/3,422.34
  6. Step 6: Final answer
    x = 2,212.45

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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.