Home / 5,515.84-8,274.08-1,818.10

Finding the Fourth Proportional to 5,515.84, 8,274.08 and 1,818.10

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Solution

The fourth proportional to 5,515.84, 8,274.08 and 1,818.10 is: 2,727.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.84 : 8,274.08 = 1,818.10 : x
  2. Step 2: Convert to fraction form
    5,515.84/8,274.08 = 1,818.10/x
  3. Step 3: Cross multiply
    5,515.84x = 8,274.08 × 1,818.10
  4. Step 4: Simplify right side
    5,515.84x = 15,043,104.85
  5. Step 5: Solve for x
    x = 15,043,104.85/5,515.84
  6. Step 6: Final answer
    x = 2,727.26

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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.