Home / 4,178.67-6,267.46-1,988.79

Finding the Fourth Proportional to 4,178.67, 6,267.46 and 1,988.79

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Solution

The fourth proportional to 4,178.67, 6,267.46 and 1,988.79 is: 2,982.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.67 : 6,267.46 = 1,988.79 : x
  2. Step 2: Convert to fraction form
    4,178.67/6,267.46 = 1,988.79/x
  3. Step 3: Cross multiply
    4,178.67x = 6,267.46 × 1,988.79
  4. Step 4: Simplify right side
    4,178.67x = 12,464,661.77
  5. Step 5: Solve for x
    x = 12,464,661.77/4,178.67
  6. Step 6: Final answer
    x = 2,982.93

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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.