Home / 1,934.76-2,668.92-1,225.32

Finding the Fourth Proportional to 1,934.76, 2,668.92 and 1,225.32

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Solution

The fourth proportional to 1,934.76, 2,668.92 and 1,225.32 is: 1,690.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.76 : 2,668.92 = 1,225.32 : x
  2. Step 2: Convert to fraction form
    1,934.76/2,668.92 = 1,225.32/x
  3. Step 3: Cross multiply
    1,934.76x = 2,668.92 × 1,225.32
  4. Step 4: Simplify right side
    1,934.76x = 3,270,281.05
  5. Step 5: Solve for x
    x = 3,270,281.05/1,934.76
  6. Step 6: Final answer
    x = 1,690.28

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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.