Home / 2,448.00-3,378.38-1,385.86

Finding the Fourth Proportional to 2,448.00, 3,378.38 and 1,385.86

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Solution

The fourth proportional to 2,448.00, 3,378.38 and 1,385.86 is: 1,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,448.00 : 3,378.38 = 1,385.86 : x
  2. Step 2: Convert to fraction form
    2,448.00/3,378.38 = 1,385.86/x
  3. Step 3: Cross multiply
    2,448.00x = 3,378.38 × 1,385.86
  4. Step 4: Simplify right side
    2,448.00x = 4,681,964.36
  5. Step 5: Solve for x
    x = 4,681,964.36/2,448.00
  6. Step 6: Final answer
    x = 1,912.57

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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.