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Finding the Fourth Proportional to 1,870.92, 2,794.53 and 1,455.73

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Solution

The fourth proportional to 1,870.92, 2,794.53 and 1,455.73 is: 2,174.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870.92 : 2,794.53 = 1,455.73 : x
  2. Step 2: Convert to fraction form
    1,870.92/2,794.53 = 1,455.73/x
  3. Step 3: Cross multiply
    1,870.92x = 2,794.53 × 1,455.73
  4. Step 4: Simplify right side
    1,870.92x = 4,068,084.65
  5. Step 5: Solve for x
    x = 4,068,084.65/1,870.92
  6. Step 6: Final answer
    x = 2,174.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.