Home / 1,975.38-2,962.65-1,270.47

Finding the Fourth Proportional to 1,975.38, 2,962.65 and 1,270.47

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Solution

The fourth proportional to 1,975.38, 2,962.65 and 1,270.47 is: 1,905.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.38 : 2,962.65 = 1,270.47 : x
  2. Step 2: Convert to fraction form
    1,975.38/2,962.65 = 1,270.47/x
  3. Step 3: Cross multiply
    1,975.38x = 2,962.65 × 1,270.47
  4. Step 4: Simplify right side
    1,975.38x = 3,763,957.95
  5. Step 5: Solve for x
    x = 3,763,957.95/1,975.38
  6. Step 6: Final answer
    x = 1,905.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.