Home / 2,921.13-4,030.74-1,661.79

Finding the Fourth Proportional to 2,921.13, 4,030.74 and 1,661.79

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Solution

The fourth proportional to 2,921.13, 4,030.74 and 1,661.79 is: 2,293.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.13 : 4,030.74 = 1,661.79 : x
  2. Step 2: Convert to fraction form
    2,921.13/4,030.74 = 1,661.79/x
  3. Step 3: Cross multiply
    2,921.13x = 4,030.74 × 1,661.79
  4. Step 4: Simplify right side
    2,921.13x = 6,698,243.42
  5. Step 5: Solve for x
    x = 6,698,243.42/2,921.13
  6. Step 6: Final answer
    x = 2,293.03

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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.