Home / 4,220.08-6,328.90-1,622.40

Finding the Fourth Proportional to 4,220.08, 6,328.90 and 1,622.40

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Solution

The fourth proportional to 4,220.08, 6,328.90 and 1,622.40 is: 2,433.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.08 : 6,328.90 = 1,622.40 : x
  2. Step 2: Convert to fraction form
    4,220.08/6,328.90 = 1,622.40/x
  3. Step 3: Cross multiply
    4,220.08x = 6,328.90 × 1,622.40
  4. Step 4: Simplify right side
    4,220.08x = 10,268,007.36
  5. Step 5: Solve for x
    x = 10,268,007.36/4,220.08
  6. Step 6: Final answer
    x = 2,433.13

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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.