Home / 1,918.45-2,863.67-1,646.29

Finding the Fourth Proportional to 1,918.45, 2,863.67 and 1,646.29

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Solution

The fourth proportional to 1,918.45, 2,863.67 and 1,646.29 is: 2,457.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.45 : 2,863.67 = 1,646.29 : x
  2. Step 2: Convert to fraction form
    1,918.45/2,863.67 = 1,646.29/x
  3. Step 3: Cross multiply
    1,918.45x = 2,863.67 × 1,646.29
  4. Step 4: Simplify right side
    1,918.45x = 4,714,431.28
  5. Step 5: Solve for x
    x = 4,714,431.28/1,918.45
  6. Step 6: Final answer
    x = 2,457.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.