Home / 7,421.42-10,220.91-5,736.62

Finding the Fourth Proportional to 7,421.42, 10,220.91 and 5,736.62

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Solution

The fourth proportional to 7,421.42, 10,220.91 and 5,736.62 is: 7,900.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.42 : 10,220.91 = 5,736.62 : x
  2. Step 2: Convert to fraction form
    7,421.42/10,220.91 = 5,736.62/x
  3. Step 3: Cross multiply
    7,421.42x = 10,220.91 × 5,736.62
  4. Step 4: Simplify right side
    7,421.42x = 58,633,476.72
  5. Step 5: Solve for x
    x = 58,633,476.72/7,421.42
  6. Step 6: Final answer
    x = 7,900.57

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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.