Home / 3,405.32-4,696.52-2,875.43

Finding the Fourth Proportional to 3,405.32, 4,696.52 and 2,875.43

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Solution

The fourth proportional to 3,405.32, 4,696.52 and 2,875.43 is: 3,965.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.32 : 4,696.52 = 2,875.43 : x
  2. Step 2: Convert to fraction form
    3,405.32/4,696.52 = 2,875.43/x
  3. Step 3: Cross multiply
    3,405.32x = 4,696.52 × 2,875.43
  4. Step 4: Simplify right side
    3,405.32x = 13,504,533.43
  5. Step 5: Solve for x
    x = 13,504,533.43/3,405.32
  6. Step 6: Final answer
    x = 3,965.71

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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.