Home / 1,811.07-2,498.99-1,147.48

Finding the Fourth Proportional to 1,811.07, 2,498.99 and 1,147.48

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Solution

The fourth proportional to 1,811.07, 2,498.99 and 1,147.48 is: 1,583.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.07 : 2,498.99 = 1,147.48 : x
  2. Step 2: Convert to fraction form
    1,811.07/2,498.99 = 1,147.48/x
  3. Step 3: Cross multiply
    1,811.07x = 2,498.99 × 1,147.48
  4. Step 4: Simplify right side
    1,811.07x = 2,867,529.06
  5. Step 5: Solve for x
    x = 2,867,529.06/1,811.07
  6. Step 6: Final answer
    x = 1,583.33

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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.