Home / 2,123.75-2,904.74-2,089.73

Finding the Fourth Proportional to 2,123.75, 2,904.74 and 2,089.73

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Solution

The fourth proportional to 2,123.75, 2,904.74 and 2,089.73 is: 2,858.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,123.75 : 2,904.74 = 2,089.73 : x
  2. Step 2: Convert to fraction form
    2,123.75/2,904.74 = 2,089.73/x
  3. Step 3: Cross multiply
    2,123.75x = 2,904.74 × 2,089.73
  4. Step 4: Simplify right side
    2,123.75x = 6,070,097.35
  5. Step 5: Solve for x
    x = 6,070,097.35/2,123.75
  6. Step 6: Final answer
    x = 2,858.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.