Home / 1,518.19-2,277.27-788.27

Finding the Fourth Proportional to 1,518.19, 2,277.27 and 788.27

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Solution

The fourth proportional to 1,518.19, 2,277.27 and 788.27 is: 1,182.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.19 : 2,277.27 = 788.27 : x
  2. Step 2: Convert to fraction form
    1,518.19/2,277.27 = 788.27/x
  3. Step 3: Cross multiply
    1,518.19x = 2,277.27 × 788.27
  4. Step 4: Simplify right side
    1,518.19x = 1,795,092.24
  5. Step 5: Solve for x
    x = 1,795,092.24/1,518.19
  6. Step 6: Final answer
    x = 1,182.39

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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.