Home / 5,286.68-7,925.16-1,821.50

Finding the Fourth Proportional to 5,286.68, 7,925.16 and 1,821.50

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Solution

The fourth proportional to 5,286.68, 7,925.16 and 1,821.50 is: 2,730.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.68 : 7,925.16 = 1,821.50 : x
  2. Step 2: Convert to fraction form
    5,286.68/7,925.16 = 1,821.50/x
  3. Step 3: Cross multiply
    5,286.68x = 7,925.16 × 1,821.50
  4. Step 4: Simplify right side
    5,286.68x = 14,435,678.94
  5. Step 5: Solve for x
    x = 14,435,678.94/5,286.68
  6. Step 6: Final answer
    x = 2,730.58

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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.