Home / 1,636.96-2,458.80-1,314.40

Finding the Fourth Proportional to 1,636.96, 2,458.80 and 1,314.40

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Solution

The fourth proportional to 1,636.96, 2,458.80 and 1,314.40 is: 1,974.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.96 : 2,458.80 = 1,314.40 : x
  2. Step 2: Convert to fraction form
    1,636.96/2,458.80 = 1,314.40/x
  3. Step 3: Cross multiply
    1,636.96x = 2,458.80 × 1,314.40
  4. Step 4: Simplify right side
    1,636.96x = 3,231,846.72
  5. Step 5: Solve for x
    x = 3,231,846.72/1,636.96
  6. Step 6: Final answer
    x = 1,974.30

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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.