Home / 1,895.10-2,827.43-1,687.20

Finding the Fourth Proportional to 1,895.10, 2,827.43 and 1,687.20

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Solution

The fourth proportional to 1,895.10, 2,827.43 and 1,687.20 is: 2,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895.10 : 2,827.43 = 1,687.20 : x
  2. Step 2: Convert to fraction form
    1,895.10/2,827.43 = 1,687.20/x
  3. Step 3: Cross multiply
    1,895.10x = 2,827.43 × 1,687.20
  4. Step 4: Simplify right side
    1,895.10x = 4,770,431.46
  5. Step 5: Solve for x
    x = 4,770,431.46/1,895.10
  6. Step 6: Final answer
    x = 2,517.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.