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Finding the Fourth Proportional to 1,928.91, 2,892.93 and 696.35

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Solution

The fourth proportional to 1,928.91, 2,892.93 and 696.35 is: 1,044.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.91 : 2,892.93 = 696.35 : x
  2. Step 2: Convert to fraction form
    1,928.91/2,892.93 = 696.35/x
  3. Step 3: Cross multiply
    1,928.91x = 2,892.93 × 696.35
  4. Step 4: Simplify right side
    1,928.91x = 2,014,477.34
  5. Step 5: Solve for x
    x = 2,014,477.34/1,928.91
  6. Step 6: Final answer
    x = 1,044.36

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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.