Home / 3,521.62-5,278.95-1,442.25

Finding the Fourth Proportional to 3,521.62, 5,278.95 and 1,442.25

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Solution

The fourth proportional to 3,521.62, 5,278.95 and 1,442.25 is: 2,161.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.62 : 5,278.95 = 1,442.25 : x
  2. Step 2: Convert to fraction form
    3,521.62/5,278.95 = 1,442.25/x
  3. Step 3: Cross multiply
    3,521.62x = 5,278.95 × 1,442.25
  4. Step 4: Simplify right side
    3,521.62x = 7,613,565.64
  5. Step 5: Solve for x
    x = 7,613,565.64/3,521.62
  6. Step 6: Final answer
    x = 2,161.95

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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.