Home / 5,490.62-8,228.88-2,857.77

Finding the Fourth Proportional to 5,490.62, 8,228.88 and 2,857.77

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Solution

The fourth proportional to 5,490.62, 8,228.88 and 2,857.77 is: 4,282.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.62 : 8,228.88 = 2,857.77 : x
  2. Step 2: Convert to fraction form
    5,490.62/8,228.88 = 2,857.77/x
  3. Step 3: Cross multiply
    5,490.62x = 8,228.88 × 2,857.77
  4. Step 4: Simplify right side
    5,490.62x = 23,516,246.40
  5. Step 5: Solve for x
    x = 23,516,246.40/5,490.62
  6. Step 6: Final answer
    x = 4,282.99

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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.