Home / 2,782.85-3,840.34-1,523.91

Finding the Fourth Proportional to 2,782.85, 3,840.34 and 1,523.91

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Solution

The fourth proportional to 2,782.85, 3,840.34 and 1,523.91 is: 2,103.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.85 : 3,840.34 = 1,523.91 : x
  2. Step 2: Convert to fraction form
    2,782.85/3,840.34 = 1,523.91/x
  3. Step 3: Cross multiply
    2,782.85x = 3,840.34 × 1,523.91
  4. Step 4: Simplify right side
    2,782.85x = 5,852,328.72
  5. Step 5: Solve for x
    x = 5,852,328.72/2,782.85
  6. Step 6: Final answer
    x = 2,103.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.