Home / 3,934.56-5,427.97-2,420.77

Finding the Fourth Proportional to 3,934.56, 5,427.97 and 2,420.77

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Solution

The fourth proportional to 3,934.56, 5,427.97 and 2,420.77 is: 3,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.56 : 5,427.97 = 2,420.77 : x
  2. Step 2: Convert to fraction form
    3,934.56/5,427.97 = 2,420.77/x
  3. Step 3: Cross multiply
    3,934.56x = 5,427.97 × 2,420.77
  4. Step 4: Simplify right side
    3,934.56x = 13,139,866.94
  5. Step 5: Solve for x
    x = 13,139,866.94/3,934.56
  6. Step 6: Final answer
    x = 3,339.60

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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.