Home / 2,386.50-3,293.42-1,338.63

Finding the Fourth Proportional to 2,386.50, 3,293.42 and 1,338.63

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Solution

The fourth proportional to 2,386.50, 3,293.42 and 1,338.63 is: 1,847.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.50 : 3,293.42 = 1,338.63 : x
  2. Step 2: Convert to fraction form
    2,386.50/3,293.42 = 1,338.63/x
  3. Step 3: Cross multiply
    2,386.50x = 3,293.42 × 1,338.63
  4. Step 4: Simplify right side
    2,386.50x = 4,408,664.12
  5. Step 5: Solve for x
    x = 4,408,664.12/2,386.50
  6. Step 6: Final answer
    x = 1,847.33

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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.