Home / 6,920.21-10,378.08-2,239.22

Finding the Fourth Proportional to 6,920.21, 10,378.08 and 2,239.22

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Solution

The fourth proportional to 6,920.21, 10,378.08 and 2,239.22 is: 3,358.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,920.21 : 10,378.08 = 2,239.22 : x
  2. Step 2: Convert to fraction form
    6,920.21/10,378.08 = 2,239.22/x
  3. Step 3: Cross multiply
    6,920.21x = 10,378.08 × 2,239.22
  4. Step 4: Simplify right side
    6,920.21x = 23,238,830.24
  5. Step 5: Solve for x
    x = 23,238,830.24/6,920.21
  6. Step 6: Final answer
    x = 3,358.11

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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.