Home / 2,504.45-3,456-1,385.32

Finding the Fourth Proportional to 2,504.45, 3,456 and 1,385.32

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Solution

The fourth proportional to 2,504.45, 3,456 and 1,385.32 is: 1,911.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,504.45 : 3,456 = 1,385.32 : x
  2. Step 2: Convert to fraction form
    2,504.45/3,456 = 1,385.32/x
  3. Step 3: Cross multiply
    2,504.45x = 3,456 × 1,385.32
  4. Step 4: Simplify right side
    2,504.45x = 4,787,665.92
  5. Step 5: Solve for x
    x = 4,787,665.92/2,504.45
  6. Step 6: Final answer
    x = 1,911.66

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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.