Home / 5,209.61-7,181.78-3,714.93

Finding the Fourth Proportional to 5,209.61, 7,181.78 and 3,714.93

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Solution

The fourth proportional to 5,209.61, 7,181.78 and 3,714.93 is: 5,121.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.61 : 7,181.78 = 3,714.93 : x
  2. Step 2: Convert to fraction form
    5,209.61/7,181.78 = 3,714.93/x
  3. Step 3: Cross multiply
    5,209.61x = 7,181.78 × 3,714.93
  4. Step 4: Simplify right side
    5,209.61x = 26,679,755.49
  5. Step 5: Solve for x
    x = 26,679,755.49/5,209.61
  6. Step 6: Final answer
    x = 5,121.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.