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Finding the Fourth Proportional to 4,258.38, 6,390.04 and 1,793

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Solution

The fourth proportional to 4,258.38, 6,390.04 and 1,793 is: 2,690.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,258.38 : 6,390.04 = 1,793 : x
  2. Step 2: Convert to fraction form
    4,258.38/6,390.04 = 1,793/x
  3. Step 3: Cross multiply
    4,258.38x = 6,390.04 × 1,793
  4. Step 4: Simplify right side
    4,258.38x = 11,457,341.72
  5. Step 5: Solve for x
    x = 11,457,341.72/4,258.38
  6. Step 6: Final answer
    x = 2,690.54

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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.