Home / 7,120.59-10,680.97-4,656.57

Finding the Fourth Proportional to 7,120.59, 10,680.97 and 4,656.57

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Solution

The fourth proportional to 7,120.59, 10,680.97 and 4,656.57 is: 6,984.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.59 : 10,680.97 = 4,656.57 : x
  2. Step 2: Convert to fraction form
    7,120.59/10,680.97 = 4,656.57/x
  3. Step 3: Cross multiply
    7,120.59x = 10,680.97 × 4,656.57
  4. Step 4: Simplify right side
    7,120.59x = 49,736,684.47
  5. Step 5: Solve for x
    x = 49,736,684.47/7,120.59
  6. Step 6: Final answer
    x = 6,984.91

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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.