Home / 2,788.27-3,847.86-1,529.45

Finding the Fourth Proportional to 2,788.27, 3,847.86 and 1,529.45

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Solution

The fourth proportional to 2,788.27, 3,847.86 and 1,529.45 is: 2,110.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.27 : 3,847.86 = 1,529.45 : x
  2. Step 2: Convert to fraction form
    2,788.27/3,847.86 = 1,529.45/x
  3. Step 3: Cross multiply
    2,788.27x = 3,847.86 × 1,529.45
  4. Step 4: Simplify right side
    2,788.27x = 5,885,090.24
  5. Step 5: Solve for x
    x = 5,885,090.24/2,788.27
  6. Step 6: Final answer
    x = 2,110.66

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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.