Home / 3,125.08-4,314.78-1,946.68

Finding the Fourth Proportional to 3,125.08, 4,314.78 and 1,946.68

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Solution

The fourth proportional to 3,125.08, 4,314.78 and 1,946.68 is: 2,687.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.08 : 4,314.78 = 1,946.68 : x
  2. Step 2: Convert to fraction form
    3,125.08/4,314.78 = 1,946.68/x
  3. Step 3: Cross multiply
    3,125.08x = 4,314.78 × 1,946.68
  4. Step 4: Simplify right side
    3,125.08x = 8,399,495.93
  5. Step 5: Solve for x
    x = 8,399,495.93/3,125.08
  6. Step 6: Final answer
    x = 2,687.77

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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.