Home / 1,905.30-2,860.47-1,883.34

Finding the Fourth Proportional to 1,905.30, 2,860.47 and 1,883.34

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Solution

The fourth proportional to 1,905.30, 2,860.47 and 1,883.34 is: 2,827.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.30 : 2,860.47 = 1,883.34 : x
  2. Step 2: Convert to fraction form
    1,905.30/2,860.47 = 1,883.34/x
  3. Step 3: Cross multiply
    1,905.30x = 2,860.47 × 1,883.34
  4. Step 4: Simplify right side
    1,905.30x = 5,387,237.57
  5. Step 5: Solve for x
    x = 5,387,237.57/1,905.30
  6. Step 6: Final answer
    x = 2,827.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.