Home / 1,872.67-2,804.75-1,140.63

Finding the Fourth Proportional to 1,872.67, 2,804.75 and 1,140.63

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Solution

The fourth proportional to 1,872.67, 2,804.75 and 1,140.63 is: 1,708.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.67 : 2,804.75 = 1,140.63 : x
  2. Step 2: Convert to fraction form
    1,872.67/2,804.75 = 1,140.63/x
  3. Step 3: Cross multiply
    1,872.67x = 2,804.75 × 1,140.63
  4. Step 4: Simplify right side
    1,872.67x = 3,199,181.99
  5. Step 5: Solve for x
    x = 3,199,181.99/1,872.67
  6. Step 6: Final answer
    x = 1,708.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.