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Finding the Fourth Proportional to 3,047.96, 4,206.48 and 1,869.80

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Solution

The fourth proportional to 3,047.96, 4,206.48 and 1,869.80 is: 2,580.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.96 : 4,206.48 = 1,869.80 : x
  2. Step 2: Convert to fraction form
    3,047.96/4,206.48 = 1,869.80/x
  3. Step 3: Cross multiply
    3,047.96x = 4,206.48 × 1,869.80
  4. Step 4: Simplify right side
    3,047.96x = 7,865,276.30
  5. Step 5: Solve for x
    x = 7,865,276.30/3,047.96
  6. Step 6: Final answer
    x = 2,580.51

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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.