Home / 3,521.72-5,283.18-1,330.76

Finding the Fourth Proportional to 3,521.72, 5,283.18 and 1,330.76

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Solution

The fourth proportional to 3,521.72, 5,283.18 and 1,330.76 is: 1,996.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.72 : 5,283.18 = 1,330.76 : x
  2. Step 2: Convert to fraction form
    3,521.72/5,283.18 = 1,330.76/x
  3. Step 3: Cross multiply
    3,521.72x = 5,283.18 × 1,330.76
  4. Step 4: Simplify right side
    3,521.72x = 7,030,644.62
  5. Step 5: Solve for x
    x = 7,030,644.62/3,521.72
  6. Step 6: Final answer
    x = 1,996.37

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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.