Home / 4,115.21-5,678.45-2,346.47

Finding the Fourth Proportional to 4,115.21, 5,678.45 and 2,346.47

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Solution

The fourth proportional to 4,115.21, 5,678.45 and 2,346.47 is: 3,237.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.21 : 5,678.45 = 2,346.47 : x
  2. Step 2: Convert to fraction form
    4,115.21/5,678.45 = 2,346.47/x
  3. Step 3: Cross multiply
    4,115.21x = 5,678.45 × 2,346.47
  4. Step 4: Simplify right side
    4,115.21x = 13,324,315.74
  5. Step 5: Solve for x
    x = 13,324,315.74/4,115.21
  6. Step 6: Final answer
    x = 3,237.83

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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.