Home / 2,312.30-3,190.97-1,264.36

Finding the Fourth Proportional to 2,312.30, 3,190.97 and 1,264.36

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Solution

The fourth proportional to 2,312.30, 3,190.97 and 1,264.36 is: 1,744.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.30 : 3,190.97 = 1,264.36 : x
  2. Step 2: Convert to fraction form
    2,312.30/3,190.97 = 1,264.36/x
  3. Step 3: Cross multiply
    2,312.30x = 3,190.97 × 1,264.36
  4. Step 4: Simplify right side
    2,312.30x = 4,034,532.44
  5. Step 5: Solve for x
    x = 4,034,532.44/2,312.30
  6. Step 6: Final answer
    x = 1,744.82

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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.