Home / 1,680.76-2,317.44-1,091.08

Finding the Fourth Proportional to 1,680.76, 2,317.44 and 1,091.08

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Solution

The fourth proportional to 1,680.76, 2,317.44 and 1,091.08 is: 1,504.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.76 : 2,317.44 = 1,091.08 : x
  2. Step 2: Convert to fraction form
    1,680.76/2,317.44 = 1,091.08/x
  3. Step 3: Cross multiply
    1,680.76x = 2,317.44 × 1,091.08
  4. Step 4: Simplify right side
    1,680.76x = 2,528,512.44
  5. Step 5: Solve for x
    x = 2,528,512.44/1,680.76
  6. Step 6: Final answer
    x = 1,504.39

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Half scale
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Double scale
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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.