Home / 3,929.78-5,894.67-1,008.11

Finding the Fourth Proportional to 3,929.78, 5,894.67 and 1,008.11

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Solution

The fourth proportional to 3,929.78, 5,894.67 and 1,008.11 is: 1,512.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.78 : 5,894.67 = 1,008.11 : x
  2. Step 2: Convert to fraction form
    3,929.78/5,894.67 = 1,008.11/x
  3. Step 3: Cross multiply
    3,929.78x = 5,894.67 × 1,008.11
  4. Step 4: Simplify right side
    3,929.78x = 5,942,475.77
  5. Step 5: Solve for x
    x = 5,942,475.77/3,929.78
  6. Step 6: Final answer
    x = 1,512.17

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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.