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Finding the Fourth Proportional to 4,798.72, 6,621.27 and 2,808.89

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Solution

The fourth proportional to 4,798.72, 6,621.27 and 2,808.89 is: 3,875.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,798.72 : 6,621.27 = 2,808.89 : x
  2. Step 2: Convert to fraction form
    4,798.72/6,621.27 = 2,808.89/x
  3. Step 3: Cross multiply
    4,798.72x = 6,621.27 × 2,808.89
  4. Step 4: Simplify right side
    4,798.72x = 18,598,400.28
  5. Step 5: Solve for x
    x = 18,598,400.28/4,798.72
  6. Step 6: Final answer
    x = 3,875.70

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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.