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Finding the Fourth Proportional to 2,014.92, 2,779.11 and 1,316.43

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Solution

The fourth proportional to 2,014.92, 2,779.11 and 1,316.43 is: 1,815.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,014.92 : 2,779.11 = 1,316.43 : x
  2. Step 2: Convert to fraction form
    2,014.92/2,779.11 = 1,316.43/x
  3. Step 3: Cross multiply
    2,014.92x = 2,779.11 × 1,316.43
  4. Step 4: Simplify right side
    2,014.92x = 3,658,503.78
  5. Step 5: Solve for x
    x = 3,658,503.78/2,014.92
  6. Step 6: Final answer
    x = 1,815.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.