Home / 3,115.07-4,298.73-1,717.82

Finding the Fourth Proportional to 3,115.07, 4,298.73 and 1,717.82

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Solution

The fourth proportional to 3,115.07, 4,298.73 and 1,717.82 is: 2,370.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.07 : 4,298.73 = 1,717.82 : x
  2. Step 2: Convert to fraction form
    3,115.07/4,298.73 = 1,717.82/x
  3. Step 3: Cross multiply
    3,115.07x = 4,298.73 × 1,717.82
  4. Step 4: Simplify right side
    3,115.07x = 7,384,416.43
  5. Step 5: Solve for x
    x = 7,384,416.43/3,115.07
  6. Step 6: Final answer
    x = 2,370.55

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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.