Home / 2,015.03-2,779.81-1,306.99

Finding the Fourth Proportional to 2,015.03, 2,779.81 and 1,306.99

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Solution

The fourth proportional to 2,015.03, 2,779.81 and 1,306.99 is: 1,803.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.03 : 2,779.81 = 1,306.99 : x
  2. Step 2: Convert to fraction form
    2,015.03/2,779.81 = 1,306.99/x
  3. Step 3: Cross multiply
    2,015.03x = 2,779.81 × 1,306.99
  4. Step 4: Simplify right side
    2,015.03x = 3,633,183.87
  5. Step 5: Solve for x
    x = 3,633,183.87/2,015.03
  6. Step 6: Final answer
    x = 1,803.04

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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.