Home / 2,019.99-2,788.12-1,234.70

Finding the Fourth Proportional to 2,019.99, 2,788.12 and 1,234.70

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Solution

The fourth proportional to 2,019.99, 2,788.12 and 1,234.70 is: 1,704.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019.99 : 2,788.12 = 1,234.70 : x
  2. Step 2: Convert to fraction form
    2,019.99/2,788.12 = 1,234.70/x
  3. Step 3: Cross multiply
    2,019.99x = 2,788.12 × 1,234.70
  4. Step 4: Simplify right side
    2,019.99x = 3,442,491.76
  5. Step 5: Solve for x
    x = 3,442,491.76/2,019.99
  6. Step 6: Final answer
    x = 1,704.21

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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.