Home / 7,164.21-9,886.14-4,179.56

Finding the Fourth Proportional to 7,164.21, 9,886.14 and 4,179.56

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Solution

The fourth proportional to 7,164.21, 9,886.14 and 4,179.56 is: 5,767.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,164.21 : 9,886.14 = 4,179.56 : x
  2. Step 2: Convert to fraction form
    7,164.21/9,886.14 = 4,179.56/x
  3. Step 3: Cross multiply
    7,164.21x = 9,886.14 × 4,179.56
  4. Step 4: Simplify right side
    7,164.21x = 41,319,740.01
  5. Step 5: Solve for x
    x = 41,319,740.01/7,164.21
  6. Step 6: Final answer
    x = 5,767.52

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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.