Home / 2,025.21-2,795.44-1,315.79

Finding the Fourth Proportional to 2,025.21, 2,795.44 and 1,315.79

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Solution

The fourth proportional to 2,025.21, 2,795.44 and 1,315.79 is: 1,816.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,025.21 : 2,795.44 = 1,315.79 : x
  2. Step 2: Convert to fraction form
    2,025.21/2,795.44 = 1,315.79/x
  3. Step 3: Cross multiply
    2,025.21x = 2,795.44 × 1,315.79
  4. Step 4: Simplify right side
    2,025.21x = 3,678,212.00
  5. Step 5: Solve for x
    x = 3,678,212.00/2,025.21
  6. Step 6: Final answer
    x = 1,816.21

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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.