Home / 2,115.75-3,171.05-1,594.08

Finding the Fourth Proportional to 2,115.75, 3,171.05 and 1,594.08

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Solution

The fourth proportional to 2,115.75, 3,171.05 and 1,594.08 is: 2,389.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.75 : 3,171.05 = 1,594.08 : x
  2. Step 2: Convert to fraction form
    2,115.75/3,171.05 = 1,594.08/x
  3. Step 3: Cross multiply
    2,115.75x = 3,171.05 × 1,594.08
  4. Step 4: Simplify right side
    2,115.75x = 5,054,905.39
  5. Step 5: Solve for x
    x = 5,054,905.39/2,115.75
  6. Step 6: Final answer
    x = 2,389.17

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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.