Home / 2,140.16-3,205.37-1,923.89

Finding the Fourth Proportional to 2,140.16, 3,205.37 and 1,923.89

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Solution

The fourth proportional to 2,140.16, 3,205.37 and 1,923.89 is: 2,881.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.16 : 3,205.37 = 1,923.89 : x
  2. Step 2: Convert to fraction form
    2,140.16/3,205.37 = 1,923.89/x
  3. Step 3: Cross multiply
    2,140.16x = 3,205.37 × 1,923.89
  4. Step 4: Simplify right side
    2,140.16x = 6,166,768.07
  5. Step 5: Solve for x
    x = 6,166,768.07/2,140.16
  6. Step 6: Final answer
    x = 2,881.46

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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.