Home / 7,119.55-10,679.86-1,925.38

Finding the Fourth Proportional to 7,119.55, 10,679.86 and 1,925.38

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Solution

The fourth proportional to 7,119.55, 10,679.86 and 1,925.38 is: 2,888.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.55 : 10,679.86 = 1,925.38 : x
  2. Step 2: Convert to fraction form
    7,119.55/10,679.86 = 1,925.38/x
  3. Step 3: Cross multiply
    7,119.55x = 10,679.86 × 1,925.38
  4. Step 4: Simplify right side
    7,119.55x = 20,562,735.45
  5. Step 5: Solve for x
    x = 20,562,735.45/7,119.55
  6. Step 6: Final answer
    x = 2,888.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.