Home / 1,808.10-2,495.54-1,218.29

Finding the Fourth Proportional to 1,808.10, 2,495.54 and 1,218.29

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Solution

The fourth proportional to 1,808.10, 2,495.54 and 1,218.29 is: 1,681.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.10 : 2,495.54 = 1,218.29 : x
  2. Step 2: Convert to fraction form
    1,808.10/2,495.54 = 1,218.29/x
  3. Step 3: Cross multiply
    1,808.10x = 2,495.54 × 1,218.29
  4. Step 4: Simplify right side
    1,808.10x = 3,040,281.99
  5. Step 5: Solve for x
    x = 3,040,281.99/1,808.10
  6. Step 6: Final answer
    x = 1,681.48

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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.