Home / 2,970.85-4,097.97-1,908.25

Finding the Fourth Proportional to 2,970.85, 4,097.97 and 1,908.25

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Solution

The fourth proportional to 2,970.85, 4,097.97 and 1,908.25 is: 2,632.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.85 : 4,097.97 = 1,908.25 : x
  2. Step 2: Convert to fraction form
    2,970.85/4,097.97 = 1,908.25/x
  3. Step 3: Cross multiply
    2,970.85x = 4,097.97 × 1,908.25
  4. Step 4: Simplify right side
    2,970.85x = 7,819,966.27
  5. Step 5: Solve for x
    x = 7,819,966.27/2,970.85
  6. Step 6: Final answer
    x = 2,632.24

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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.