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Finding the Fourth Proportional to 1,946.60, 2,971.13 and 1,946.60

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Solution

The fourth proportional to 1,946.60, 2,971.13 and 1,946.60 is: 2,971.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.60 : 2,971.13 = 1,946.60 : x
  2. Step 2: Convert to fraction form
    1,946.60/2,971.13 = 1,946.60/x
  3. Step 3: Cross multiply
    1,946.60x = 2,971.13 × 1,946.60
  4. Step 4: Simplify right side
    1,946.60x = 5,783,601.66
  5. Step 5: Solve for x
    x = 5,783,601.66/1,946.60
  6. Step 6: Final answer
    x = 2,971.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.