Home / 2,819.04-3,890.28-1,577.04

Finding the Fourth Proportional to 2,819.04, 3,890.28 and 1,577.04

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Solution

The fourth proportional to 2,819.04, 3,890.28 and 1,577.04 is: 2,176.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.04 : 3,890.28 = 1,577.04 : x
  2. Step 2: Convert to fraction form
    2,819.04/3,890.28 = 1,577.04/x
  3. Step 3: Cross multiply
    2,819.04x = 3,890.28 × 1,577.04
  4. Step 4: Simplify right side
    2,819.04x = 6,135,127.17
  5. Step 5: Solve for x
    x = 6,135,127.17/2,819.04
  6. Step 6: Final answer
    x = 2,176.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.