Home / 2,585.49-3,893.43-1,860.12

Finding the Fourth Proportional to 2,585.49, 3,893.43 and 1,860.12

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Solution

The fourth proportional to 2,585.49, 3,893.43 and 1,860.12 is: 2,801.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585.49 : 3,893.43 = 1,860.12 : x
  2. Step 2: Convert to fraction form
    2,585.49/3,893.43 = 1,860.12/x
  3. Step 3: Cross multiply
    2,585.49x = 3,893.43 × 1,860.12
  4. Step 4: Simplify right side
    2,585.49x = 7,242,247.01
  5. Step 5: Solve for x
    x = 7,242,247.01/2,585.49
  6. Step 6: Final answer
    x = 2,801.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.