Home / 2,083.65-2,876.64-1,555.44

Finding the Fourth Proportional to 2,083.65, 2,876.64 and 1,555.44

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Solution

The fourth proportional to 2,083.65, 2,876.64 and 1,555.44 is: 2,147.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,083.65 : 2,876.64 = 1,555.44 : x
  2. Step 2: Convert to fraction form
    2,083.65/2,876.64 = 1,555.44/x
  3. Step 3: Cross multiply
    2,083.65x = 2,876.64 × 1,555.44
  4. Step 4: Simplify right side
    2,083.65x = 4,474,445.88
  5. Step 5: Solve for x
    x = 4,474,445.88/2,083.65
  6. Step 6: Final answer
    x = 2,147.41

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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.