Home / 7,160.39-9,879.94-4,176.35

Finding the Fourth Proportional to 7,160.39, 9,879.94 and 4,176.35

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Solution

The fourth proportional to 7,160.39, 9,879.94 and 4,176.35 is: 5,762.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.39 : 9,879.94 = 4,176.35 : x
  2. Step 2: Convert to fraction form
    7,160.39/9,879.94 = 4,176.35/x
  3. Step 3: Cross multiply
    7,160.39x = 9,879.94 × 4,176.35
  4. Step 4: Simplify right side
    7,160.39x = 41,262,087.42
  5. Step 5: Solve for x
    x = 41,262,087.42/7,160.39
  6. Step 6: Final answer
    x = 5,762.55

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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.