Home / 3,519.72-5,281.40-1,571.47

Finding the Fourth Proportional to 3,519.72, 5,281.40 and 1,571.47

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Solution

The fourth proportional to 3,519.72, 5,281.40 and 1,571.47 is: 2,358.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.72 : 5,281.40 = 1,571.47 : x
  2. Step 2: Convert to fraction form
    3,519.72/5,281.40 = 1,571.47/x
  3. Step 3: Cross multiply
    3,519.72x = 5,281.40 × 1,571.47
  4. Step 4: Simplify right side
    3,519.72x = 8,299,552.38
  5. Step 5: Solve for x
    x = 8,299,552.38/3,519.72
  6. Step 6: Final answer
    x = 2,358.01

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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.