Home / 4,128.01-6,190.77-1,787.47

Finding the Fourth Proportional to 4,128.01, 6,190.77 and 1,787.47

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Solution

The fourth proportional to 4,128.01, 6,190.77 and 1,787.47 is: 2,680.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.01 : 6,190.77 = 1,787.47 : x
  2. Step 2: Convert to fraction form
    4,128.01/6,190.77 = 1,787.47/x
  3. Step 3: Cross multiply
    4,128.01x = 6,190.77 × 1,787.47
  4. Step 4: Simplify right side
    4,128.01x = 11,065,815.65
  5. Step 5: Solve for x
    x = 11,065,815.65/4,128.01
  6. Step 6: Final answer
    x = 2,680.67

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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.