Home / 2,448.35-3,378.56-1,386.23

Finding the Fourth Proportional to 2,448.35, 3,378.56 and 1,386.23

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Solution

The fourth proportional to 2,448.35, 3,378.56 and 1,386.23 is: 1,912.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,448.35 : 3,378.56 = 1,386.23 : x
  2. Step 2: Convert to fraction form
    2,448.35/3,378.56 = 1,386.23/x
  3. Step 3: Cross multiply
    2,448.35x = 3,378.56 × 1,386.23
  4. Step 4: Simplify right side
    2,448.35x = 4,683,447.80
  5. Step 5: Solve for x
    x = 4,683,447.80/2,448.35
  6. Step 6: Final answer
    x = 1,912.90

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Half scale
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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.