Home / 4,621.36-6,378.24-4,340.20

Finding the Fourth Proportional to 4,621.36, 6,378.24 and 4,340.20

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Solution

The fourth proportional to 4,621.36, 6,378.24 and 4,340.20 is: 5,990.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,621.36 : 6,378.24 = 4,340.20 : x
  2. Step 2: Convert to fraction form
    4,621.36/6,378.24 = 4,340.20/x
  3. Step 3: Cross multiply
    4,621.36x = 6,378.24 × 4,340.20
  4. Step 4: Simplify right side
    4,621.36x = 27,682,837.25
  5. Step 5: Solve for x
    x = 27,682,837.25/4,621.36
  6. Step 6: Final answer
    x = 5,990.19

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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.