Home / 4,763.16-7,143.55-1,989.85

Finding the Fourth Proportional to 4,763.16, 7,143.55 and 1,989.85

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Solution

The fourth proportional to 4,763.16, 7,143.55 and 1,989.85 is: 2,984.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,763.16 : 7,143.55 = 1,989.85 : x
  2. Step 2: Convert to fraction form
    4,763.16/7,143.55 = 1,989.85/x
  3. Step 3: Cross multiply
    4,763.16x = 7,143.55 × 1,989.85
  4. Step 4: Simplify right side
    4,763.16x = 14,214,592.97
  5. Step 5: Solve for x
    x = 14,214,592.97/4,763.16
  6. Step 6: Final answer
    x = 2,984.28

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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.