Home / 2,021.44-2,787.63-1,313.47

Finding the Fourth Proportional to 2,021.44, 2,787.63 and 1,313.47

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Solution

The fourth proportional to 2,021.44, 2,787.63 and 1,313.47 is: 1,811.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.44 : 2,787.63 = 1,313.47 : x
  2. Step 2: Convert to fraction form
    2,021.44/2,787.63 = 1,313.47/x
  3. Step 3: Cross multiply
    2,021.44x = 2,787.63 × 1,313.47
  4. Step 4: Simplify right side
    2,021.44x = 3,661,470.74
  5. Step 5: Solve for x
    x = 3,661,470.74/2,021.44
  6. Step 6: Final answer
    x = 1,811.32

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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.