Home / 2,308.74-3,186.09-1,260.81

Finding the Fourth Proportional to 2,308.74, 3,186.09 and 1,260.81

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Solution

The fourth proportional to 2,308.74, 3,186.09 and 1,260.81 is: 1,739.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.74 : 3,186.09 = 1,260.81 : x
  2. Step 2: Convert to fraction form
    2,308.74/3,186.09 = 1,260.81/x
  3. Step 3: Cross multiply
    2,308.74x = 3,186.09 × 1,260.81
  4. Step 4: Simplify right side
    2,308.74x = 4,017,054.13
  5. Step 5: Solve for x
    x = 4,017,054.13/2,308.74
  6. Step 6: Final answer
    x = 1,739.93

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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.