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Finding the Fourth Proportional to 1,935.20, 2,898.92 and 893.79

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Solution

The fourth proportional to 1,935.20, 2,898.92 and 893.79 is: 1,338.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.20 : 2,898.92 = 893.79 : x
  2. Step 2: Convert to fraction form
    1,935.20/2,898.92 = 893.79/x
  3. Step 3: Cross multiply
    1,935.20x = 2,898.92 × 893.79
  4. Step 4: Simplify right side
    1,935.20x = 2,591,025.71
  5. Step 5: Solve for x
    x = 2,591,025.71/1,935.20
  6. Step 6: Final answer
    x = 1,338.89

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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.