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Finding the Fourth Proportional to 4,998.70, 7,494.45 and 2,808.10

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Solution

The fourth proportional to 4,998.70, 7,494.45 and 2,808.10 is: 4,210.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.70 : 7,494.45 = 2,808.10 : x
  2. Step 2: Convert to fraction form
    4,998.70/7,494.45 = 2,808.10/x
  3. Step 3: Cross multiply
    4,998.70x = 7,494.45 × 2,808.10
  4. Step 4: Simplify right side
    4,998.70x = 21,045,165.05
  5. Step 5: Solve for x
    x = 21,045,165.05/4,998.70
  6. Step 6: Final answer
    x = 4,210.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.