Home / 1,939.20-2,914.20-1,701.60

Finding the Fourth Proportional to 1,939.20, 2,914.20 and 1,701.60

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Solution

The fourth proportional to 1,939.20, 2,914.20 and 1,701.60 is: 2,557.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.20 : 2,914.20 = 1,701.60 : x
  2. Step 2: Convert to fraction form
    1,939.20/2,914.20 = 1,701.60/x
  3. Step 3: Cross multiply
    1,939.20x = 2,914.20 × 1,701.60
  4. Step 4: Simplify right side
    1,939.20x = 4,958,802.72
  5. Step 5: Solve for x
    x = 4,958,802.72/1,939.20
  6. Step 6: Final answer
    x = 2,557.14

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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.