Home / 2,334.37-3,220.74-1,389.68

Finding the Fourth Proportional to 2,334.37, 3,220.74 and 1,389.68

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Solution

The fourth proportional to 2,334.37, 3,220.74 and 1,389.68 is: 1,917.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.37 : 3,220.74 = 1,389.68 : x
  2. Step 2: Convert to fraction form
    2,334.37/3,220.74 = 1,389.68/x
  3. Step 3: Cross multiply
    2,334.37x = 3,220.74 × 1,389.68
  4. Step 4: Simplify right side
    2,334.37x = 4,475,799.07
  5. Step 5: Solve for x
    x = 4,475,799.07/2,334.37
  6. Step 6: Final answer
    x = 1,917.35

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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.