Home / 3,125.40-4,682.70-2,029.20

Finding the Fourth Proportional to 3,125.40, 4,682.70 and 2,029.20

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Solution

The fourth proportional to 3,125.40, 4,682.70 and 2,029.20 is: 3,040.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.40 : 4,682.70 = 2,029.20 : x
  2. Step 2: Convert to fraction form
    3,125.40/4,682.70 = 2,029.20/x
  3. Step 3: Cross multiply
    3,125.40x = 4,682.70 × 2,029.20
  4. Step 4: Simplify right side
    3,125.40x = 9,502,134.84
  5. Step 5: Solve for x
    x = 9,502,134.84/3,125.40
  6. Step 6: Final answer
    x = 3,040.29

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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.