Home / 2,448.54-3,378.92-1,386.28

Finding the Fourth Proportional to 2,448.54, 3,378.92 and 1,386.28

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Solution

The fourth proportional to 2,448.54, 3,378.92 and 1,386.28 is: 1,913.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,448.54 : 3,378.92 = 1,386.28 : x
  2. Step 2: Convert to fraction form
    2,448.54/3,378.92 = 1,386.28/x
  3. Step 3: Cross multiply
    2,448.54x = 3,378.92 × 1,386.28
  4. Step 4: Simplify right side
    2,448.54x = 4,684,129.22
  5. Step 5: Solve for x
    x = 4,684,129.22/2,448.54
  6. Step 6: Final answer
    x = 1,913.03

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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.