Home / 3,117.44-4,300.81-2,186.48

Finding the Fourth Proportional to 3,117.44, 4,300.81 and 2,186.48

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Solution

The fourth proportional to 3,117.44, 4,300.81 and 2,186.48 is: 3,016.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.44 : 4,300.81 = 2,186.48 : x
  2. Step 2: Convert to fraction form
    3,117.44/4,300.81 = 2,186.48/x
  3. Step 3: Cross multiply
    3,117.44x = 4,300.81 × 2,186.48
  4. Step 4: Simplify right side
    3,117.44x = 9,403,608.08
  5. Step 5: Solve for x
    x = 9,403,608.08/3,117.44
  6. Step 6: Final answer
    x = 3,016.46

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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.