Home / 2,788.29-3,847.68-1,529.10

Finding the Fourth Proportional to 2,788.29, 3,847.68 and 1,529.10

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Solution

The fourth proportional to 2,788.29, 3,847.68 and 1,529.10 is: 2,110.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.29 : 3,847.68 = 1,529.10 : x
  2. Step 2: Convert to fraction form
    2,788.29/3,847.68 = 1,529.10/x
  3. Step 3: Cross multiply
    2,788.29x = 3,847.68 × 1,529.10
  4. Step 4: Simplify right side
    2,788.29x = 5,883,487.49
  5. Step 5: Solve for x
    x = 5,883,487.49/2,788.29
  6. Step 6: Final answer
    x = 2,110.07

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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.