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Finding the Fourth Proportional to 4,797.79, 6,621.43 and 2,808.23

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Solution

The fourth proportional to 4,797.79, 6,621.43 and 2,808.23 is: 3,875.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,797.79 : 6,621.43 = 2,808.23 : x
  2. Step 2: Convert to fraction form
    4,797.79/6,621.43 = 2,808.23/x
  3. Step 3: Cross multiply
    4,797.79x = 6,621.43 × 2,808.23
  4. Step 4: Simplify right side
    4,797.79x = 18,594,498.37
  5. Step 5: Solve for x
    x = 18,594,498.37/4,797.79
  6. Step 6: Final answer
    x = 3,875.64

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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.