Home / 3,521.18-5,283.20-1,330.54

Finding the Fourth Proportional to 3,521.18, 5,283.20 and 1,330.54

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Solution

The fourth proportional to 3,521.18, 5,283.20 and 1,330.54 is: 1,996.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.18 : 5,283.20 = 1,330.54 : x
  2. Step 2: Convert to fraction form
    3,521.18/5,283.20 = 1,330.54/x
  3. Step 3: Cross multiply
    3,521.18x = 5,283.20 × 1,330.54
  4. Step 4: Simplify right side
    3,521.18x = 7,029,475.86
  5. Step 5: Solve for x
    x = 7,029,475.86/3,521.18
  6. Step 6: Final answer
    x = 1,996.34

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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.