Home / 3,538.98-4,879.62-2,420.46

Finding the Fourth Proportional to 3,538.98, 4,879.62 and 2,420.46

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Solution

The fourth proportional to 3,538.98, 4,879.62 and 2,420.46 is: 3,337.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.98 : 4,879.62 = 2,420.46 : x
  2. Step 2: Convert to fraction form
    3,538.98/4,879.62 = 2,420.46/x
  3. Step 3: Cross multiply
    3,538.98x = 4,879.62 × 2,420.46
  4. Step 4: Simplify right side
    3,538.98x = 11,810,925.03
  5. Step 5: Solve for x
    x = 11,810,925.03/3,538.98
  6. Step 6: Final answer
    x = 3,337.38

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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.