Home / 2,955.30-4,078.18-1,628.99

Finding the Fourth Proportional to 2,955.30, 4,078.18 and 1,628.99

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Solution

The fourth proportional to 2,955.30, 4,078.18 and 1,628.99 is: 2,247.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.30 : 4,078.18 = 1,628.99 : x
  2. Step 2: Convert to fraction form
    2,955.30/4,078.18 = 1,628.99/x
  3. Step 3: Cross multiply
    2,955.30x = 4,078.18 × 1,628.99
  4. Step 4: Simplify right side
    2,955.30x = 6,643,314.44
  5. Step 5: Solve for x
    x = 6,643,314.44/2,955.30
  6. Step 6: Final answer
    x = 2,247.93

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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.