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Finding the Fourth Proportional to 2,693.60, 3,684.40 and 2,628.80

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Solution

The fourth proportional to 2,693.60, 3,684.40 and 2,628.80 is: 3,595.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,693.60 : 3,684.40 = 2,628.80 : x
  2. Step 2: Convert to fraction form
    2,693.60/3,684.40 = 2,628.80/x
  3. Step 3: Cross multiply
    2,693.60x = 3,684.40 × 2,628.80
  4. Step 4: Simplify right side
    2,693.60x = 9,685,550.72
  5. Step 5: Solve for x
    x = 9,685,550.72/2,693.60
  6. Step 6: Final answer
    x = 3,595.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.