Home / 2,084.10-2,874.33-1,420.98

Finding the Fourth Proportional to 2,084.10, 2,874.33 and 1,420.98

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Solution

The fourth proportional to 2,084.10, 2,874.33 and 1,420.98 is: 1,959.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.10 : 2,874.33 = 1,420.98 : x
  2. Step 2: Convert to fraction form
    2,084.10/2,874.33 = 1,420.98/x
  3. Step 3: Cross multiply
    2,084.10x = 2,874.33 × 1,420.98
  4. Step 4: Simplify right side
    2,084.10x = 4,084,365.44
  5. Step 5: Solve for x
    x = 4,084,365.44/2,084.10
  6. Step 6: Final answer
    x = 1,959.77

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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.