Home / 4,221.20-6,328.56-1,626.32

Finding the Fourth Proportional to 4,221.20, 6,328.56 and 1,626.32

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Solution

The fourth proportional to 4,221.20, 6,328.56 and 1,626.32 is: 2,438.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.20 : 6,328.56 = 1,626.32 : x
  2. Step 2: Convert to fraction form
    4,221.20/6,328.56 = 1,626.32/x
  3. Step 3: Cross multiply
    4,221.20x = 6,328.56 × 1,626.32
  4. Step 4: Simplify right side
    4,221.20x = 10,292,263.70
  5. Step 5: Solve for x
    x = 10,292,263.70/4,221.20
  6. Step 6: Final answer
    x = 2,438.23

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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.