Home / 5,412.38-8,118.80-1,714.88

Finding the Fourth Proportional to 5,412.38, 8,118.80 and 1,714.88

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Solution

The fourth proportional to 5,412.38, 8,118.80 and 1,714.88 is: 2,572.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.38 : 8,118.80 = 1,714.88 : x
  2. Step 2: Convert to fraction form
    5,412.38/8,118.80 = 1,714.88/x
  3. Step 3: Cross multiply
    5,412.38x = 8,118.80 × 1,714.88
  4. Step 4: Simplify right side
    5,412.38x = 13,922,740.23
  5. Step 5: Solve for x
    x = 13,922,740.23/5,412.38
  6. Step 6: Final answer
    x = 2,572.39

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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.