Home / 3,389.08-4,676.61-1,896.79

Finding the Fourth Proportional to 3,389.08, 4,676.61 and 1,896.79

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Solution

The fourth proportional to 3,389.08, 4,676.61 and 1,896.79 is: 2,617.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.08 : 4,676.61 = 1,896.79 : x
  2. Step 2: Convert to fraction form
    3,389.08/4,676.61 = 1,896.79/x
  3. Step 3: Cross multiply
    3,389.08x = 4,676.61 × 1,896.79
  4. Step 4: Simplify right side
    3,389.08x = 8,870,547.08
  5. Step 5: Solve for x
    x = 8,870,547.08/3,389.08
  6. Step 6: Final answer
    x = 2,617.39

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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.