Home / 3,921.23-5,411.47-2,328.82

Finding the Fourth Proportional to 3,921.23, 5,411.47 and 2,328.82

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Solution

The fourth proportional to 3,921.23, 5,411.47 and 2,328.82 is: 3,213.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.23 : 5,411.47 = 2,328.82 : x
  2. Step 2: Convert to fraction form
    3,921.23/5,411.47 = 2,328.82/x
  3. Step 3: Cross multiply
    3,921.23x = 5,411.47 × 2,328.82
  4. Step 4: Simplify right side
    3,921.23x = 12,602,327.92
  5. Step 5: Solve for x
    x = 12,602,327.92/3,921.23
  6. Step 6: Final answer
    x = 3,213.87

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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.