Home / 2,305.51-3,177.99-1,931.83

Finding the Fourth Proportional to 2,305.51, 3,177.99 and 1,931.83

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Solution

The fourth proportional to 2,305.51, 3,177.99 and 1,931.83 is: 2,662.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.51 : 3,177.99 = 1,931.83 : x
  2. Step 2: Convert to fraction form
    2,305.51/3,177.99 = 1,931.83/x
  3. Step 3: Cross multiply
    2,305.51x = 3,177.99 × 1,931.83
  4. Step 4: Simplify right side
    2,305.51x = 6,139,336.42
  5. Step 5: Solve for x
    x = 6,139,336.42/2,305.51
  6. Step 6: Final answer
    x = 2,662.90

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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.