Home / 1,960.01-2,705.63-1,400.70

Finding the Fourth Proportional to 1,960.01, 2,705.63 and 1,400.70

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Solution

The fourth proportional to 1,960.01, 2,705.63 and 1,400.70 is: 1,933.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.01 : 2,705.63 = 1,400.70 : x
  2. Step 2: Convert to fraction form
    1,960.01/2,705.63 = 1,400.70/x
  3. Step 3: Cross multiply
    1,960.01x = 2,705.63 × 1,400.70
  4. Step 4: Simplify right side
    1,960.01x = 3,789,768.94
  5. Step 5: Solve for x
    x = 3,789,768.94/1,960.01
  6. Step 6: Final answer
    x = 1,933.55

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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.