Home / 5,412.30-8,118.90-1,714.44

Finding the Fourth Proportional to 5,412.30, 8,118.90 and 1,714.44

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Solution

The fourth proportional to 5,412.30, 8,118.90 and 1,714.44 is: 2,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.30 : 8,118.90 = 1,714.44 : x
  2. Step 2: Convert to fraction form
    5,412.30/8,118.90 = 1,714.44/x
  3. Step 3: Cross multiply
    5,412.30x = 8,118.90 × 1,714.44
  4. Step 4: Simplify right side
    5,412.30x = 13,919,366.92
  5. Step 5: Solve for x
    x = 13,919,366.92/5,412.30
  6. Step 6: Final answer
    x = 2,571.80

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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.