Home / 2,809.22-4,210.29-1,422.91

Finding the Fourth Proportional to 2,809.22, 4,210.29 and 1,422.91

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Solution

The fourth proportional to 2,809.22, 4,210.29 and 1,422.91 is: 2,132.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.22 : 4,210.29 = 1,422.91 : x
  2. Step 2: Convert to fraction form
    2,809.22/4,210.29 = 1,422.91/x
  3. Step 3: Cross multiply
    2,809.22x = 4,210.29 × 1,422.91
  4. Step 4: Simplify right side
    2,809.22x = 5,990,853.22
  5. Step 5: Solve for x
    x = 5,990,853.22/2,809.22
  6. Step 6: Final answer
    x = 2,132.57

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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.