Home / 2,955.26-4,078.08-1,628.98

Finding the Fourth Proportional to 2,955.26, 4,078.08 and 1,628.98

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Solution

The fourth proportional to 2,955.26, 4,078.08 and 1,628.98 is: 2,247.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.26 : 4,078.08 = 1,628.98 : x
  2. Step 2: Convert to fraction form
    2,955.26/4,078.08 = 1,628.98/x
  3. Step 3: Cross multiply
    2,955.26x = 4,078.08 × 1,628.98
  4. Step 4: Simplify right side
    2,955.26x = 6,643,094.45
  5. Step 5: Solve for x
    x = 6,643,094.45/2,955.26
  6. Step 6: Final answer
    x = 2,247.89

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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.