Home / 4,622.93-6,378.89-2,855.10

Finding the Fourth Proportional to 4,622.93, 6,378.89 and 2,855.10

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Solution

The fourth proportional to 4,622.93, 6,378.89 and 2,855.10 is: 3,939.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,622.93 : 6,378.89 = 2,855.10 : x
  2. Step 2: Convert to fraction form
    4,622.93/6,378.89 = 2,855.10/x
  3. Step 3: Cross multiply
    4,622.93x = 6,378.89 × 2,855.10
  4. Step 4: Simplify right side
    4,622.93x = 18,212,354.56
  5. Step 5: Solve for x
    x = 18,212,354.56/4,622.93
  6. Step 6: Final answer
    x = 3,939.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.