Home / 4,621.72-6,378.12-3,048.64

Finding the Fourth Proportional to 4,621.72, 6,378.12 and 3,048.64

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Solution

The fourth proportional to 4,621.72, 6,378.12 and 3,048.64 is: 4,207.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,621.72 : 6,378.12 = 3,048.64 : x
  2. Step 2: Convert to fraction form
    4,621.72/6,378.12 = 3,048.64/x
  3. Step 3: Cross multiply
    4,621.72x = 6,378.12 × 3,048.64
  4. Step 4: Simplify right side
    4,621.72x = 19,444,591.76
  5. Step 5: Solve for x
    x = 19,444,591.76/4,621.72
  6. Step 6: Final answer
    x = 4,207.22

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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.