Home / 2,921.79-4,032.16-1,662.81

Finding the Fourth Proportional to 2,921.79, 4,032.16 and 1,662.81

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Solution

The fourth proportional to 2,921.79, 4,032.16 and 1,662.81 is: 2,294.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.79 : 4,032.16 = 1,662.81 : x
  2. Step 2: Convert to fraction form
    2,921.79/4,032.16 = 1,662.81/x
  3. Step 3: Cross multiply
    2,921.79x = 4,032.16 × 1,662.81
  4. Step 4: Simplify right side
    2,921.79x = 6,704,715.97
  5. Step 5: Solve for x
    x = 6,704,715.97/2,921.79
  6. Step 6: Final answer
    x = 2,294.73

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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.