Home / 2,391.30-3,303.06-1,838.55

Finding the Fourth Proportional to 2,391.30, 3,303.06 and 1,838.55

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Solution

The fourth proportional to 2,391.30, 3,303.06 and 1,838.55 is: 2,539.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.30 : 3,303.06 = 1,838.55 : x
  2. Step 2: Convert to fraction form
    2,391.30/3,303.06 = 1,838.55/x
  3. Step 3: Cross multiply
    2,391.30x = 3,303.06 × 1,838.55
  4. Step 4: Simplify right side
    2,391.30x = 6,072,840.96
  5. Step 5: Solve for x
    x = 6,072,840.96/2,391.30
  6. Step 6: Final answer
    x = 2,539.56

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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.