Home / 7,160.78-10,738.59-2,479.52

Finding the Fourth Proportional to 7,160.78, 10,738.59 and 2,479.52

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Solution

The fourth proportional to 7,160.78, 10,738.59 and 2,479.52 is: 3,718.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.78 : 10,738.59 = 2,479.52 : x
  2. Step 2: Convert to fraction form
    7,160.78/10,738.59 = 2,479.52/x
  3. Step 3: Cross multiply
    7,160.78x = 10,738.59 × 2,479.52
  4. Step 4: Simplify right side
    7,160.78x = 26,626,548.68
  5. Step 5: Solve for x
    x = 26,626,548.68/7,160.78
  6. Step 6: Final answer
    x = 3,718.39

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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.