Home / 2,231.80-3,345.06-1,258.84

Finding the Fourth Proportional to 2,231.80, 3,345.06 and 1,258.84

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Solution

The fourth proportional to 2,231.80, 3,345.06 and 1,258.84 is: 1,886.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.80 : 3,345.06 = 1,258.84 : x
  2. Step 2: Convert to fraction form
    2,231.80/3,345.06 = 1,258.84/x
  3. Step 3: Cross multiply
    2,231.80x = 3,345.06 × 1,258.84
  4. Step 4: Simplify right side
    2,231.80x = 4,210,895.33
  5. Step 5: Solve for x
    x = 4,210,895.33/2,231.80
  6. Step 6: Final answer
    x = 1,886.77

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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.