Home / 2,315.17-3,194.94-1,267.30

Finding the Fourth Proportional to 2,315.17, 3,194.94 and 1,267.30

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Solution

The fourth proportional to 2,315.17, 3,194.94 and 1,267.30 is: 1,748.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.17 : 3,194.94 = 1,267.30 : x
  2. Step 2: Convert to fraction form
    2,315.17/3,194.94 = 1,267.30/x
  3. Step 3: Cross multiply
    2,315.17x = 3,194.94 × 1,267.30
  4. Step 4: Simplify right side
    2,315.17x = 4,048,947.46
  5. Step 5: Solve for x
    x = 4,048,947.46/2,315.17
  6. Step 6: Final answer
    x = 1,748.88

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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.