Home / 2,590.20-3,880.98-1,819.32

Finding the Fourth Proportional to 2,590.20, 3,880.98 and 1,819.32

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Solution

The fourth proportional to 2,590.20, 3,880.98 and 1,819.32 is: 2,725.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590.20 : 3,880.98 = 1,819.32 : x
  2. Step 2: Convert to fraction form
    2,590.20/3,880.98 = 1,819.32/x
  3. Step 3: Cross multiply
    2,590.20x = 3,880.98 × 1,819.32
  4. Step 4: Simplify right side
    2,590.20x = 7,060,744.53
  5. Step 5: Solve for x
    x = 7,060,744.53/2,590.20
  6. Step 6: Final answer
    x = 2,725.95

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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.