Home / 4,678.60-7,011.83-1,902.05

Finding the Fourth Proportional to 4,678.60, 7,011.83 and 1,902.05

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Solution

The fourth proportional to 4,678.60, 7,011.83 and 1,902.05 is: 2,850.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.60 : 7,011.83 = 1,902.05 : x
  2. Step 2: Convert to fraction form
    4,678.60/7,011.83 = 1,902.05/x
  3. Step 3: Cross multiply
    4,678.60x = 7,011.83 × 1,902.05
  4. Step 4: Simplify right side
    4,678.60x = 13,336,851.25
  5. Step 5: Solve for x
    x = 13,336,851.25/4,678.60
  6. Step 6: Final answer
    x = 2,850.61

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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.