Home / 2,082.40-2,858.67-1,787.15

Finding the Fourth Proportional to 2,082.40, 2,858.67 and 1,787.15

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Solution

The fourth proportional to 2,082.40, 2,858.67 and 1,787.15 is: 2,453.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.40 : 2,858.67 = 1,787.15 : x
  2. Step 2: Convert to fraction form
    2,082.40/2,858.67 = 1,787.15/x
  3. Step 3: Cross multiply
    2,082.40x = 2,858.67 × 1,787.15
  4. Step 4: Simplify right side
    2,082.40x = 5,108,879.24
  5. Step 5: Solve for x
    x = 5,108,879.24/2,082.40
  6. Step 6: Final answer
    x = 2,453.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.