Home / 1,589.06-2,378.98-1,422.34

Finding the Fourth Proportional to 1,589.06, 2,378.98 and 1,422.34

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Solution

The fourth proportional to 1,589.06, 2,378.98 and 1,422.34 is: 2,129.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.06 : 2,378.98 = 1,422.34 : x
  2. Step 2: Convert to fraction form
    1,589.06/2,378.98 = 1,422.34/x
  3. Step 3: Cross multiply
    1,589.06x = 2,378.98 × 1,422.34
  4. Step 4: Simplify right side
    1,589.06x = 3,383,714.24
  5. Step 5: Solve for x
    x = 3,383,714.24/1,589.06
  6. Step 6: Final answer
    x = 2,129.38

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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.