Home / 1,946.56-2,920.32-630.43

Finding the Fourth Proportional to 1,946.56, 2,920.32 and 630.43

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Solution

The fourth proportional to 1,946.56, 2,920.32 and 630.43 is: 945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.56 : 2,920.32 = 630.43 : x
  2. Step 2: Convert to fraction form
    1,946.56/2,920.32 = 630.43/x
  3. Step 3: Cross multiply
    1,946.56x = 2,920.32 × 630.43
  4. Step 4: Simplify right side
    1,946.56x = 1,841,057.34
  5. Step 5: Solve for x
    x = 1,841,057.34/1,946.56
  6. Step 6: Final answer
    x = 945.80

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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.