Home / 7,406.40-11,111.04-2,212.16

Finding the Fourth Proportional to 7,406.40, 11,111.04 and 2,212.16

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Solution

The fourth proportional to 7,406.40, 11,111.04 and 2,212.16 is: 3,318.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,406.40 : 11,111.04 = 2,212.16 : x
  2. Step 2: Convert to fraction form
    7,406.40/11,111.04 = 2,212.16/x
  3. Step 3: Cross multiply
    7,406.40x = 11,111.04 × 2,212.16
  4. Step 4: Simplify right side
    7,406.40x = 24,579,398.25
  5. Step 5: Solve for x
    x = 24,579,398.25/7,406.40
  6. Step 6: Final answer
    x = 3,318.67

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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.