Home / 7,101.45-10,653.30-2,421.90

Finding the Fourth Proportional to 7,101.45, 10,653.30 and 2,421.90

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Solution

The fourth proportional to 7,101.45, 10,653.30 and 2,421.90 is: 3,633.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,101.45 : 10,653.30 = 2,421.90 : x
  2. Step 2: Convert to fraction form
    7,101.45/10,653.30 = 2,421.90/x
  3. Step 3: Cross multiply
    7,101.45x = 10,653.30 × 2,421.90
  4. Step 4: Simplify right side
    7,101.45x = 25,801,227.27
  5. Step 5: Solve for x
    x = 25,801,227.27/7,101.45
  6. Step 6: Final answer
    x = 3,633.23

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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.