Home / 2,022.15-2,790.26-1,277.13

Finding the Fourth Proportional to 2,022.15, 2,790.26 and 1,277.13

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Solution

The fourth proportional to 2,022.15, 2,790.26 and 1,277.13 is: 1,762.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022.15 : 2,790.26 = 1,277.13 : x
  2. Step 2: Convert to fraction form
    2,022.15/2,790.26 = 1,277.13/x
  3. Step 3: Cross multiply
    2,022.15x = 2,790.26 × 1,277.13
  4. Step 4: Simplify right side
    2,022.15x = 3,563,524.75
  5. Step 5: Solve for x
    x = 3,563,524.75/2,022.15
  6. Step 6: Final answer
    x = 1,762.25

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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.