Home / 2,823.21-4,231.55-1,521.95

Finding the Fourth Proportional to 2,823.21, 4,231.55 and 1,521.95

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Solution

The fourth proportional to 2,823.21, 4,231.55 and 1,521.95 is: 2,281.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,823.21 : 4,231.55 = 1,521.95 : x
  2. Step 2: Convert to fraction form
    2,823.21/4,231.55 = 1,521.95/x
  3. Step 3: Cross multiply
    2,823.21x = 4,231.55 × 1,521.95
  4. Step 4: Simplify right side
    2,823.21x = 6,440,178.76
  5. Step 5: Solve for x
    x = 6,440,178.76/2,823.21
  6. Step 6: Final answer
    x = 2,281.15

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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.