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Finding the Fourth Proportional to 1,929.79, 2,894.82 and 955.63

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Solution

The fourth proportional to 1,929.79, 2,894.82 and 955.63 is: 1,433.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.79 : 2,894.82 = 955.63 : x
  2. Step 2: Convert to fraction form
    1,929.79/2,894.82 = 955.63/x
  3. Step 3: Cross multiply
    1,929.79x = 2,894.82 × 955.63
  4. Step 4: Simplify right side
    1,929.79x = 2,766,357.58
  5. Step 5: Solve for x
    x = 2,766,357.58/1,929.79
  6. Step 6: Final answer
    x = 1,433.51

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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.