Home / 2,835.40-3,911.48-1,840.99

Finding the Fourth Proportional to 2,835.40, 3,911.48 and 1,840.99

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Solution

The fourth proportional to 2,835.40, 3,911.48 and 1,840.99 is: 2,539.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.40 : 3,911.48 = 1,840.99 : x
  2. Step 2: Convert to fraction form
    2,835.40/3,911.48 = 1,840.99/x
  3. Step 3: Cross multiply
    2,835.40x = 3,911.48 × 1,840.99
  4. Step 4: Simplify right side
    2,835.40x = 7,200,980.61
  5. Step 5: Solve for x
    x = 7,200,980.61/2,835.40
  6. Step 6: Final answer
    x = 2,539.67

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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.