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Finding the Fourth Proportional to 1,969.47, 2,954.81 and 930.27

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Solution

The fourth proportional to 1,969.47, 2,954.81 and 930.27 is: 1,395.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.47 : 2,954.81 = 930.27 : x
  2. Step 2: Convert to fraction form
    1,969.47/2,954.81 = 930.27/x
  3. Step 3: Cross multiply
    1,969.47x = 2,954.81 × 930.27
  4. Step 4: Simplify right side
    1,969.47x = 2,748,766.45
  5. Step 5: Solve for x
    x = 2,748,766.45/1,969.47
  6. Step 6: Final answer
    x = 1,395.69

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1.5x scale

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.