Home / 7,078.59-10,618.29-2,148.39

Finding the Fourth Proportional to 7,078.59, 10,618.29 and 2,148.39

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Solution

The fourth proportional to 7,078.59, 10,618.29 and 2,148.39 is: 3,222.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078.59 : 10,618.29 = 2,148.39 : x
  2. Step 2: Convert to fraction form
    7,078.59/10,618.29 = 2,148.39/x
  3. Step 3: Cross multiply
    7,078.59x = 10,618.29 × 2,148.39
  4. Step 4: Simplify right side
    7,078.59x = 22,812,228.05
  5. Step 5: Solve for x
    x = 22,812,228.05/7,078.59
  6. Step 6: Final answer
    x = 3,222.71

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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.