Home / 2,315.07-3,194.79-1,267.13

Finding the Fourth Proportional to 2,315.07, 3,194.79 and 1,267.13

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Solution

The fourth proportional to 2,315.07, 3,194.79 and 1,267.13 is: 1,748.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.07 : 3,194.79 = 1,267.13 : x
  2. Step 2: Convert to fraction form
    2,315.07/3,194.79 = 1,267.13/x
  3. Step 3: Cross multiply
    2,315.07x = 3,194.79 × 1,267.13
  4. Step 4: Simplify right side
    2,315.07x = 4,048,198.28
  5. Step 5: Solve for x
    x = 4,048,198.28/2,315.07
  6. Step 6: Final answer
    x = 1,748.63

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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.