Home / 2,783.24-3,840.92-1,604.32

Finding the Fourth Proportional to 2,783.24, 3,840.92 and 1,604.32

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Solution

The fourth proportional to 2,783.24, 3,840.92 and 1,604.32 is: 2,213.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.24 : 3,840.92 = 1,604.32 : x
  2. Step 2: Convert to fraction form
    2,783.24/3,840.92 = 1,604.32/x
  3. Step 3: Cross multiply
    2,783.24x = 3,840.92 × 1,604.32
  4. Step 4: Simplify right side
    2,783.24x = 6,162,064.77
  5. Step 5: Solve for x
    x = 6,162,064.77/2,783.24
  6. Step 6: Final answer
    x = 2,213.99

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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.