Home / 4,219.51-6,322.78-1,621.03

Finding the Fourth Proportional to 4,219.51, 6,322.78 and 1,621.03

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Solution

The fourth proportional to 4,219.51, 6,322.78 and 1,621.03 is: 2,429.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219.51 : 6,322.78 = 1,621.03 : x
  2. Step 2: Convert to fraction form
    4,219.51/6,322.78 = 1,621.03/x
  3. Step 3: Cross multiply
    4,219.51x = 6,322.78 × 1,621.03
  4. Step 4: Simplify right side
    4,219.51x = 10,249,416.06
  5. Step 5: Solve for x
    x = 10,249,416.06/4,219.51
  6. Step 6: Final answer
    x = 2,429.05

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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.