Home / 4,285.64-6,428.05-2,907.83

Finding the Fourth Proportional to 4,285.64, 6,428.05 and 2,907.83

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Solution

The fourth proportional to 4,285.64, 6,428.05 and 2,907.83 is: 4,361.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.64 : 6,428.05 = 2,907.83 : x
  2. Step 2: Convert to fraction form
    4,285.64/6,428.05 = 2,907.83/x
  3. Step 3: Cross multiply
    4,285.64x = 6,428.05 × 2,907.83
  4. Step 4: Simplify right side
    4,285.64x = 18,691,685.43
  5. Step 5: Solve for x
    x = 18,691,685.43/4,285.64
  6. Step 6: Final answer
    x = 4,361.47

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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.