Home / 4,678.12-7,018.62-2,081.80

Finding the Fourth Proportional to 4,678.12, 7,018.62 and 2,081.80

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Solution

The fourth proportional to 4,678.12, 7,018.62 and 2,081.80 is: 3,123.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.12 : 7,018.62 = 2,081.80 : x
  2. Step 2: Convert to fraction form
    4,678.12/7,018.62 = 2,081.80/x
  3. Step 3: Cross multiply
    4,678.12x = 7,018.62 × 2,081.80
  4. Step 4: Simplify right side
    4,678.12x = 14,611,363.12
  5. Step 5: Solve for x
    x = 14,611,363.12/4,678.12
  6. Step 6: Final answer
    x = 3,123.34

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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.