Home / 1,933.08-2,668.63-1,225.65

Finding the Fourth Proportional to 1,933.08, 2,668.63 and 1,225.65

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Solution

The fourth proportional to 1,933.08, 2,668.63 and 1,225.65 is: 1,692.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.08 : 2,668.63 = 1,225.65 : x
  2. Step 2: Convert to fraction form
    1,933.08/2,668.63 = 1,225.65/x
  3. Step 3: Cross multiply
    1,933.08x = 2,668.63 × 1,225.65
  4. Step 4: Simplify right side
    1,933.08x = 3,270,806.36
  5. Step 5: Solve for x
    x = 3,270,806.36/1,933.08
  6. Step 6: Final answer
    x = 1,692.02

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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.