Home / 2,921.09-4,030.78-1,662.02

Finding the Fourth Proportional to 2,921.09, 4,030.78 and 1,662.02

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Solution

The fourth proportional to 2,921.09, 4,030.78 and 1,662.02 is: 2,293.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.09 : 4,030.78 = 1,662.02 : x
  2. Step 2: Convert to fraction form
    2,921.09/4,030.78 = 1,662.02/x
  3. Step 3: Cross multiply
    2,921.09x = 4,030.78 × 1,662.02
  4. Step 4: Simplify right side
    2,921.09x = 6,699,223.89
  5. Step 5: Solve for x
    x = 6,699,223.89/2,921.09
  6. Step 6: Final answer
    x = 2,293.40

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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.