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Finding the Fourth Proportional to 2,679.46, 4,017.63 and 1,118.99

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Solution

The fourth proportional to 2,679.46, 4,017.63 and 1,118.99 is: 1,677.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.46 : 4,017.63 = 1,118.99 : x
  2. Step 2: Convert to fraction form
    2,679.46/4,017.63 = 1,118.99/x
  3. Step 3: Cross multiply
    2,679.46x = 4,017.63 × 1,118.99
  4. Step 4: Simplify right side
    2,679.46x = 4,495,687.79
  5. Step 5: Solve for x
    x = 4,495,687.79/2,679.46
  6. Step 6: Final answer
    x = 1,677.83

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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.