Home / 5,440.14-8,158.69-1,929.70

Finding the Fourth Proportional to 5,440.14, 8,158.69 and 1,929.70

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Solution

The fourth proportional to 5,440.14, 8,158.69 and 1,929.70 is: 2,894.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.14 : 8,158.69 = 1,929.70 : x
  2. Step 2: Convert to fraction form
    5,440.14/8,158.69 = 1,929.70/x
  3. Step 3: Cross multiply
    5,440.14x = 8,158.69 × 1,929.70
  4. Step 4: Simplify right side
    5,440.14x = 15,743,794.05
  5. Step 5: Solve for x
    x = 15,743,794.05/5,440.14
  6. Step 6: Final answer
    x = 2,894.01

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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.