Home / 7,904.96-10,907.86-4,921.76

Finding the Fourth Proportional to 7,904.96, 10,907.86 and 4,921.76

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Solution

The fourth proportional to 7,904.96, 10,907.86 and 4,921.76 is: 6,791.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,904.96 : 10,907.86 = 4,921.76 : x
  2. Step 2: Convert to fraction form
    7,904.96/10,907.86 = 4,921.76/x
  3. Step 3: Cross multiply
    7,904.96x = 10,907.86 × 4,921.76
  4. Step 4: Simplify right side
    7,904.96x = 53,685,869.03
  5. Step 5: Solve for x
    x = 53,685,869.03/7,904.96
  6. Step 6: Final answer
    x = 6,791.42

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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.