Home / 2,921.63-4,035.08-1,931.27

Finding the Fourth Proportional to 2,921.63, 4,035.08 and 1,931.27

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Solution

The fourth proportional to 2,921.63, 4,035.08 and 1,931.27 is: 2,667.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.63 : 4,035.08 = 1,931.27 : x
  2. Step 2: Convert to fraction form
    2,921.63/4,035.08 = 1,931.27/x
  3. Step 3: Cross multiply
    2,921.63x = 4,035.08 × 1,931.27
  4. Step 4: Simplify right side
    2,921.63x = 7,792,813.60
  5. Step 5: Solve for x
    x = 7,792,813.60/2,921.63
  6. Step 6: Final answer
    x = 2,667.29

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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.