Home / 6,949.78-10,415.45-3,665.19

Finding the Fourth Proportional to 6,949.78, 10,415.45 and 3,665.19

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Solution

The fourth proportional to 6,949.78, 10,415.45 and 3,665.19 is: 5,492.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,949.78 : 10,415.45 = 3,665.19 : x
  2. Step 2: Convert to fraction form
    6,949.78/10,415.45 = 3,665.19/x
  3. Step 3: Cross multiply
    6,949.78x = 10,415.45 × 3,665.19
  4. Step 4: Simplify right side
    6,949.78x = 38,174,603.19
  5. Step 5: Solve for x
    x = 38,174,603.19/6,949.78
  6. Step 6: Final answer
    x = 5,492.92

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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.