Home / 3,388.86-4,676.49-1,896.75

Finding the Fourth Proportional to 3,388.86, 4,676.49 and 1,896.75

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Solution

The fourth proportional to 3,388.86, 4,676.49 and 1,896.75 is: 2,617.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.86 : 4,676.49 = 1,896.75 : x
  2. Step 2: Convert to fraction form
    3,388.86/4,676.49 = 1,896.75/x
  3. Step 3: Cross multiply
    3,388.86x = 4,676.49 × 1,896.75
  4. Step 4: Simplify right side
    3,388.86x = 8,870,132.41
  5. Step 5: Solve for x
    x = 8,870,132.41/3,388.86
  6. Step 6: Final answer
    x = 2,617.44

Related Problems

Find fourth proportional to 1,694.43, 2,338.25 and 948.38
Half scale
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Double scale
Find fourth proportional to 3,389.86, 4,677.87 and 1,897.75
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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.