Home / 1,840.11-2,753.69-1,403.79

Finding the Fourth Proportional to 1,840.11, 2,753.69 and 1,403.79

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Solution

The fourth proportional to 1,840.11, 2,753.69 and 1,403.79 is: 2,100.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840.11 : 2,753.69 = 1,403.79 : x
  2. Step 2: Convert to fraction form
    1,840.11/2,753.69 = 1,403.79/x
  3. Step 3: Cross multiply
    1,840.11x = 2,753.69 × 1,403.79
  4. Step 4: Simplify right side
    1,840.11x = 3,865,595.47
  5. Step 5: Solve for x
    x = 3,865,595.47/1,840.11
  6. Step 6: Final answer
    x = 2,100.74

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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.