Home / 3,378.83-4,662.70-2,102.40

Finding the Fourth Proportional to 3,378.83, 4,662.70 and 2,102.40

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Solution

The fourth proportional to 3,378.83, 4,662.70 and 2,102.40 is: 2,901.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.83 : 4,662.70 = 2,102.40 : x
  2. Step 2: Convert to fraction form
    3,378.83/4,662.70 = 2,102.40/x
  3. Step 3: Cross multiply
    3,378.83x = 4,662.70 × 2,102.40
  4. Step 4: Simplify right side
    3,378.83x = 9,802,855.22
  5. Step 5: Solve for x
    x = 9,802,855.22/3,378.83
  6. Step 6: Final answer
    x = 2,901.26

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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.