Home / 3,521.88-5,278.84-1,670.42

Finding the Fourth Proportional to 3,521.88, 5,278.84 and 1,670.42

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Solution

The fourth proportional to 3,521.88, 5,278.84 and 1,670.42 is: 2,503.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.88 : 5,278.84 = 1,670.42 : x
  2. Step 2: Convert to fraction form
    3,521.88/5,278.84 = 1,670.42/x
  3. Step 3: Cross multiply
    3,521.88x = 5,278.84 × 1,670.42
  4. Step 4: Simplify right side
    3,521.88x = 8,817,888.93
  5. Step 5: Solve for x
    x = 8,817,888.93/3,521.88
  6. Step 6: Final answer
    x = 2,503.74

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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.