Home / 7,258.37-10,886.75-1,993.78

Finding the Fourth Proportional to 7,258.37, 10,886.75 and 1,993.78

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Solution

The fourth proportional to 7,258.37, 10,886.75 and 1,993.78 is: 2,990.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,258.37 : 10,886.75 = 1,993.78 : x
  2. Step 2: Convert to fraction form
    7,258.37/10,886.75 = 1,993.78/x
  3. Step 3: Cross multiply
    7,258.37x = 10,886.75 × 1,993.78
  4. Step 4: Simplify right side
    7,258.37x = 21,705,784.42
  5. Step 5: Solve for x
    x = 21,705,784.42/7,258.37
  6. Step 6: Final answer
    x = 2,990.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.