Home / 3,006.67-4,148.92-1,680.35

Finding the Fourth Proportional to 3,006.67, 4,148.92 and 1,680.35

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Solution

The fourth proportional to 3,006.67, 4,148.92 and 1,680.35 is: 2,318.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,006.67 : 4,148.92 = 1,680.35 : x
  2. Step 2: Convert to fraction form
    3,006.67/4,148.92 = 1,680.35/x
  3. Step 3: Cross multiply
    3,006.67x = 4,148.92 × 1,680.35
  4. Step 4: Simplify right side
    3,006.67x = 6,971,619.08
  5. Step 5: Solve for x
    x = 6,971,619.08/3,006.67
  6. Step 6: Final answer
    x = 2,318.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.