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Finding the Fourth Proportional to 2,959.07, 4,445.05 and 1,789.63

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Solution

The fourth proportional to 2,959.07, 4,445.05 and 1,789.63 is: 2,688.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959.07 : 4,445.05 = 1,789.63 : x
  2. Step 2: Convert to fraction form
    2,959.07/4,445.05 = 1,789.63/x
  3. Step 3: Cross multiply
    2,959.07x = 4,445.05 × 1,789.63
  4. Step 4: Simplify right side
    2,959.07x = 7,954,972.61
  5. Step 5: Solve for x
    x = 7,954,972.61/2,959.07
  6. Step 6: Final answer
    x = 2,688.34

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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.