Home / 3,385.66-5,078.49-1,904.98

Finding the Fourth Proportional to 3,385.66, 5,078.49 and 1,904.98

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Solution

The fourth proportional to 3,385.66, 5,078.49 and 1,904.98 is: 2,857.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.66 : 5,078.49 = 1,904.98 : x
  2. Step 2: Convert to fraction form
    3,385.66/5,078.49 = 1,904.98/x
  3. Step 3: Cross multiply
    3,385.66x = 5,078.49 × 1,904.98
  4. Step 4: Simplify right side
    3,385.66x = 9,674,421.88
  5. Step 5: Solve for x
    x = 9,674,421.88/3,385.66
  6. Step 6: Final answer
    x = 2,857.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.