Home / 4,689.50-6,470.82-3,984.18

Finding the Fourth Proportional to 4,689.50, 6,470.82 and 3,984.18

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Solution

The fourth proportional to 4,689.50, 6,470.82 and 3,984.18 is: 5,497.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.50 : 6,470.82 = 3,984.18 : x
  2. Step 2: Convert to fraction form
    4,689.50/6,470.82 = 3,984.18/x
  3. Step 3: Cross multiply
    4,689.50x = 6,470.82 × 3,984.18
  4. Step 4: Simplify right side
    4,689.50x = 25,780,911.63
  5. Step 5: Solve for x
    x = 25,780,911.63/4,689.50
  6. Step 6: Final answer
    x = 5,497.58

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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.