Home / 7,218.05-9,960.19-4,030.84

Finding the Fourth Proportional to 7,218.05, 9,960.19 and 4,030.84

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Solution

The fourth proportional to 7,218.05, 9,960.19 and 4,030.84 is: 5,562.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.05 : 9,960.19 = 4,030.84 : x
  2. Step 2: Convert to fraction form
    7,218.05/9,960.19 = 4,030.84/x
  3. Step 3: Cross multiply
    7,218.05x = 9,960.19 × 4,030.84
  4. Step 4: Simplify right side
    7,218.05x = 40,147,917.96
  5. Step 5: Solve for x
    x = 40,147,917.96/7,218.05
  6. Step 6: Final answer
    x = 5,562.16

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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.