Home / 7,401.38-11,102.06-1,929.38

Finding the Fourth Proportional to 7,401.38, 11,102.06 and 1,929.38

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Solution

The fourth proportional to 7,401.38, 11,102.06 and 1,929.38 is: 2,894.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,401.38 : 11,102.06 = 1,929.38 : x
  2. Step 2: Convert to fraction form
    7,401.38/11,102.06 = 1,929.38/x
  3. Step 3: Cross multiply
    7,401.38x = 11,102.06 × 1,929.38
  4. Step 4: Simplify right side
    7,401.38x = 21,420,041.84
  5. Step 5: Solve for x
    x = 21,420,041.84/7,401.38
  6. Step 6: Final answer
    x = 2,894.06

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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.