Home / 2,308.92-3,186.30-1,260.98

Finding the Fourth Proportional to 2,308.92, 3,186.30 and 1,260.98

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Solution

The fourth proportional to 2,308.92, 3,186.30 and 1,260.98 is: 1,740.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.92 : 3,186.30 = 1,260.98 : x
  2. Step 2: Convert to fraction form
    2,308.92/3,186.30 = 1,260.98/x
  3. Step 3: Cross multiply
    2,308.92x = 3,186.30 × 1,260.98
  4. Step 4: Simplify right side
    2,308.92x = 4,017,860.57
  5. Step 5: Solve for x
    x = 4,017,860.57/2,308.92
  6. Step 6: Final answer
    x = 1,740.15

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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.