Home / 2,819.16-4,230.36-1,521.72

Finding the Fourth Proportional to 2,819.16, 4,230.36 and 1,521.72

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Solution

The fourth proportional to 2,819.16, 4,230.36 and 1,521.72 is: 2,283.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.16 : 4,230.36 = 1,521.72 : x
  2. Step 2: Convert to fraction form
    2,819.16/4,230.36 = 1,521.72/x
  3. Step 3: Cross multiply
    2,819.16x = 4,230.36 × 1,521.72
  4. Step 4: Simplify right side
    2,819.16x = 6,437,423.42
  5. Step 5: Solve for x
    x = 6,437,423.42/2,819.16
  6. Step 6: Final answer
    x = 2,283.45

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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.