Home / 2,378.84-3,283.85-1,571.27

Finding the Fourth Proportional to 2,378.84, 3,283.85 and 1,571.27

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Solution

The fourth proportional to 2,378.84, 3,283.85 and 1,571.27 is: 2,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.84 : 3,283.85 = 1,571.27 : x
  2. Step 2: Convert to fraction form
    2,378.84/3,283.85 = 1,571.27/x
  3. Step 3: Cross multiply
    2,378.84x = 3,283.85 × 1,571.27
  4. Step 4: Simplify right side
    2,378.84x = 5,159,814.99
  5. Step 5: Solve for x
    x = 5,159,814.99/2,378.84
  6. Step 6: Final answer
    x = 2,169.05

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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.