Home / 5,818.21-8,685.11-5,384.56

Finding the Fourth Proportional to 5,818.21, 8,685.11 and 5,384.56

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Solution

The fourth proportional to 5,818.21, 8,685.11 and 5,384.56 is: 8,037.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,818.21 : 8,685.11 = 5,384.56 : x
  2. Step 2: Convert to fraction form
    5,818.21/8,685.11 = 5,384.56/x
  3. Step 3: Cross multiply
    5,818.21x = 8,685.11 × 5,384.56
  4. Step 4: Simplify right side
    5,818.21x = 46,765,495.90
  5. Step 5: Solve for x
    x = 46,765,495.90/5,818.21
  6. Step 6: Final answer
    x = 8,037.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.