Home / 2,783.13-3,840.72-1,541.13

Finding the Fourth Proportional to 2,783.13, 3,840.72 and 1,541.13

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Solution

The fourth proportional to 2,783.13, 3,840.72 and 1,541.13 is: 2,126.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.13 : 3,840.72 = 1,541.13 : x
  2. Step 2: Convert to fraction form
    2,783.13/3,840.72 = 1,541.13/x
  3. Step 3: Cross multiply
    2,783.13x = 3,840.72 × 1,541.13
  4. Step 4: Simplify right side
    2,783.13x = 5,919,021.90
  5. Step 5: Solve for x
    x = 5,919,021.90/2,783.13
  6. Step 6: Final answer
    x = 2,126.75

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1.5x scale

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.