Home / 5,515.10-8,273.72-1,818.39

Finding the Fourth Proportional to 5,515.10, 8,273.72 and 1,818.39

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Solution

The fourth proportional to 5,515.10, 8,273.72 and 1,818.39 is: 2,727.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.10 : 8,273.72 = 1,818.39 : x
  2. Step 2: Convert to fraction form
    5,515.10/8,273.72 = 1,818.39/x
  3. Step 3: Cross multiply
    5,515.10x = 8,273.72 × 1,818.39
  4. Step 4: Simplify right side
    5,515.10x = 15,044,849.71
  5. Step 5: Solve for x
    x = 15,044,849.71/5,515.10
  6. Step 6: Final answer
    x = 2,727.94

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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.