Home / 5,447.78-8,156.94-4,271.60

Finding the Fourth Proportional to 5,447.78, 8,156.94 and 4,271.60

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Solution

The fourth proportional to 5,447.78, 8,156.94 and 4,271.60 is: 6,395.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.78 : 8,156.94 = 4,271.60 : x
  2. Step 2: Convert to fraction form
    5,447.78/8,156.94 = 4,271.60/x
  3. Step 3: Cross multiply
    5,447.78x = 8,156.94 × 4,271.60
  4. Step 4: Simplify right side
    5,447.78x = 34,843,184.90
  5. Step 5: Solve for x
    x = 34,843,184.90/5,447.78
  6. Step 6: Final answer
    x = 6,395.85

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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.