Home / 4,120.47-6,180.65-1,000.50

Finding the Fourth Proportional to 4,120.47, 6,180.65 and 1,000.50

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Solution

The fourth proportional to 4,120.47, 6,180.65 and 1,000.50 is: 1,500.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.47 : 6,180.65 = 1,000.50 : x
  2. Step 2: Convert to fraction form
    4,120.47/6,180.65 = 1,000.50/x
  3. Step 3: Cross multiply
    4,120.47x = 6,180.65 × 1,000.50
  4. Step 4: Simplify right side
    4,120.47x = 6,183,735.32
  5. Step 5: Solve for x
    x = 6,183,735.32/4,120.47
  6. Step 6: Final answer
    x = 1,500.74

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Double scale
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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.