Home / 4,220.67-6,328.26-1,409.16

Finding the Fourth Proportional to 4,220.67, 6,328.26 and 1,409.16

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Solution

The fourth proportional to 4,220.67, 6,328.26 and 1,409.16 is: 2,112.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.67 : 6,328.26 = 1,409.16 : x
  2. Step 2: Convert to fraction form
    4,220.67/6,328.26 = 1,409.16/x
  3. Step 3: Cross multiply
    4,220.67x = 6,328.26 × 1,409.16
  4. Step 4: Simplify right side
    4,220.67x = 8,917,530.86
  5. Step 5: Solve for x
    x = 8,917,530.86/4,220.67
  6. Step 6: Final answer
    x = 2,112.82

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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.