Home / 1,950.86-2,692.48-1,111.36

Finding the Fourth Proportional to 1,950.86, 2,692.48 and 1,111.36

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Solution

The fourth proportional to 1,950.86, 2,692.48 and 1,111.36 is: 1,533.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950.86 : 2,692.48 = 1,111.36 : x
  2. Step 2: Convert to fraction form
    1,950.86/2,692.48 = 1,111.36/x
  3. Step 3: Cross multiply
    1,950.86x = 2,692.48 × 1,111.36
  4. Step 4: Simplify right side
    1,950.86x = 2,992,314.57
  5. Step 5: Solve for x
    x = 2,992,314.57/1,950.86
  6. Step 6: Final answer
    x = 1,533.84

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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.