Home / 5,412.20-8,119.52-1,714.10

Finding the Fourth Proportional to 5,412.20, 8,119.52 and 1,714.10

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Solution

The fourth proportional to 5,412.20, 8,119.52 and 1,714.10 is: 2,571.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.20 : 8,119.52 = 1,714.10 : x
  2. Step 2: Convert to fraction form
    5,412.20/8,119.52 = 1,714.10/x
  3. Step 3: Cross multiply
    5,412.20x = 8,119.52 × 1,714.10
  4. Step 4: Simplify right side
    5,412.20x = 13,917,620.06
  5. Step 5: Solve for x
    x = 13,917,620.06/5,412.20
  6. Step 6: Final answer
    x = 2,571.53

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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.