Home / 3,378.42-5,054.09-2,921.13

Finding the Fourth Proportional to 3,378.42, 5,054.09 and 2,921.13

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Solution

The fourth proportional to 3,378.42, 5,054.09 and 2,921.13 is: 4,369.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.42 : 5,054.09 = 2,921.13 : x
  2. Step 2: Convert to fraction form
    3,378.42/5,054.09 = 2,921.13/x
  3. Step 3: Cross multiply
    3,378.42x = 5,054.09 × 2,921.13
  4. Step 4: Simplify right side
    3,378.42x = 14,763,639.32
  5. Step 5: Solve for x
    x = 14,763,639.32/3,378.42
  6. Step 6: Final answer
    x = 4,369.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.