Home / 3,145.62-4,346.60-2,259.89

Finding the Fourth Proportional to 3,145.62, 4,346.60 and 2,259.89

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Solution

The fourth proportional to 3,145.62, 4,346.60 and 2,259.89 is: 3,122.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.62 : 4,346.60 = 2,259.89 : x
  2. Step 2: Convert to fraction form
    3,145.62/4,346.60 = 2,259.89/x
  3. Step 3: Cross multiply
    3,145.62x = 4,346.60 × 2,259.89
  4. Step 4: Simplify right side
    3,145.62x = 9,822,804.84
  5. Step 5: Solve for x
    x = 9,822,804.84/3,145.62
  6. Step 6: Final answer
    x = 3,122.69

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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.