Home / 5,416.79-8,114.82-3,218.84

Finding the Fourth Proportional to 5,416.79, 8,114.82 and 3,218.84

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Solution

The fourth proportional to 5,416.79, 8,114.82 and 3,218.84 is: 4,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.79 : 8,114.82 = 3,218.84 : x
  2. Step 2: Convert to fraction form
    5,416.79/8,114.82 = 3,218.84/x
  3. Step 3: Cross multiply
    5,416.79x = 8,114.82 × 3,218.84
  4. Step 4: Simplify right side
    5,416.79x = 26,120,307.21
  5. Step 5: Solve for x
    x = 26,120,307.21/5,416.79
  6. Step 6: Final answer
    x = 4,822.10

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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.