Home / 5,715.05-8,573.19-1,818.55

Finding the Fourth Proportional to 5,715.05, 8,573.19 and 1,818.55

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Solution

The fourth proportional to 5,715.05, 8,573.19 and 1,818.55 is: 2,728.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.05 : 8,573.19 = 1,818.55 : x
  2. Step 2: Convert to fraction form
    5,715.05/8,573.19 = 1,818.55/x
  3. Step 3: Cross multiply
    5,715.05x = 8,573.19 × 1,818.55
  4. Step 4: Simplify right side
    5,715.05x = 15,590,774.67
  5. Step 5: Solve for x
    x = 15,590,774.67/5,715.05
  6. Step 6: Final answer
    x = 2,728.02

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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.