Home / 1,872.10-2,583.49-1,086.60

Finding the Fourth Proportional to 1,872.10, 2,583.49 and 1,086.60

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Solution

The fourth proportional to 1,872.10, 2,583.49 and 1,086.60 is: 1,499.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.10 : 2,583.49 = 1,086.60 : x
  2. Step 2: Convert to fraction form
    1,872.10/2,583.49 = 1,086.60/x
  3. Step 3: Cross multiply
    1,872.10x = 2,583.49 × 1,086.60
  4. Step 4: Simplify right side
    1,872.10x = 2,807,220.23
  5. Step 5: Solve for x
    x = 2,807,220.23/1,872.10
  6. Step 6: Final answer
    x = 1,499.50

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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.