Home / 1,764.25-2,646.37-668.35

Finding the Fourth Proportional to 1,764.25, 2,646.37 and 668.35

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Solution

The fourth proportional to 1,764.25, 2,646.37 and 668.35 is: 1,002.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764.25 : 2,646.37 = 668.35 : x
  2. Step 2: Convert to fraction form
    1,764.25/2,646.37 = 668.35/x
  3. Step 3: Cross multiply
    1,764.25x = 2,646.37 × 668.35
  4. Step 4: Simplify right side
    1,764.25x = 1,768,698.05
  5. Step 5: Solve for x
    x = 1,768,698.05/1,764.25
  6. Step 6: Final answer
    x = 1,002.52

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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.