Home / 3,920.47-5,411.27-2,427.54

Finding the Fourth Proportional to 3,920.47, 5,411.27 and 2,427.54

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Solution

The fourth proportional to 3,920.47, 5,411.27 and 2,427.54 is: 3,350.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920.47 : 5,411.27 = 2,427.54 : x
  2. Step 2: Convert to fraction form
    3,920.47/5,411.27 = 2,427.54/x
  3. Step 3: Cross multiply
    3,920.47x = 5,411.27 × 2,427.54
  4. Step 4: Simplify right side
    3,920.47x = 13,136,060.15
  5. Step 5: Solve for x
    x = 13,136,060.15/3,920.47
  6. Step 6: Final answer
    x = 3,350.64

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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.