Home / 2,631.98-3,636.50-2,076.68

Finding the Fourth Proportional to 2,631.98, 3,636.50 and 2,076.68

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Solution

The fourth proportional to 2,631.98, 3,636.50 and 2,076.68 is: 2,869.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.98 : 3,636.50 = 2,076.68 : x
  2. Step 2: Convert to fraction form
    2,631.98/3,636.50 = 2,076.68/x
  3. Step 3: Cross multiply
    2,631.98x = 3,636.50 × 2,076.68
  4. Step 4: Simplify right side
    2,631.98x = 7,551,818.25
  5. Step 5: Solve for x
    x = 7,551,818.25/2,631.98
  6. Step 6: Final answer
    x = 2,869.25

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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.