Home / 1,694.77-2,337.57-1,555.33

Finding the Fourth Proportional to 1,694.77, 2,337.57 and 1,555.33

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Solution

The fourth proportional to 1,694.77, 2,337.57 and 1,555.33 is: 2,145.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,694.77 : 2,337.57 = 1,555.33 : x
  2. Step 2: Convert to fraction form
    1,694.77/2,337.57 = 1,555.33/x
  3. Step 3: Cross multiply
    1,694.77x = 2,337.57 × 1,555.33
  4. Step 4: Simplify right side
    1,694.77x = 3,635,704.43
  5. Step 5: Solve for x
    x = 3,635,704.43/1,694.77
  6. Step 6: Final answer
    x = 2,145.25

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Half scale
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Double scale
Find fourth proportional to 1,695.77, 2,338.95 and 1,556.33
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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.