Home / 2,819.14-3,890.07-1,560.10

Finding the Fourth Proportional to 2,819.14, 3,890.07 and 1,560.10

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Solution

The fourth proportional to 2,819.14, 3,890.07 and 1,560.10 is: 2,152.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.14 : 3,890.07 = 1,560.10 : x
  2. Step 2: Convert to fraction form
    2,819.14/3,890.07 = 1,560.10/x
  3. Step 3: Cross multiply
    2,819.14x = 3,890.07 × 1,560.10
  4. Step 4: Simplify right side
    2,819.14x = 6,068,898.21
  5. Step 5: Solve for x
    x = 6,068,898.21/2,819.14
  6. Step 6: Final answer
    x = 2,152.75

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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.