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Finding the Fourth Proportional to 1,359.81, 2,038.10 and 995.85

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Solution

The fourth proportional to 1,359.81, 2,038.10 and 995.85 is: 1,492.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359.81 : 2,038.10 = 995.85 : x
  2. Step 2: Convert to fraction form
    1,359.81/2,038.10 = 995.85/x
  3. Step 3: Cross multiply
    1,359.81x = 2,038.10 × 995.85
  4. Step 4: Simplify right side
    1,359.81x = 2,029,636.91
  5. Step 5: Solve for x
    x = 2,029,636.91/1,359.81
  6. Step 6: Final answer
    x = 1,492.59

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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.