Home / 6,528.41-9,794.28-2,145.90

Finding the Fourth Proportional to 6,528.41, 9,794.28 and 2,145.90

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Solution

The fourth proportional to 6,528.41, 9,794.28 and 2,145.90 is: 3,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,528.41 : 9,794.28 = 2,145.90 : x
  2. Step 2: Convert to fraction form
    6,528.41/9,794.28 = 2,145.90/x
  3. Step 3: Cross multiply
    6,528.41x = 9,794.28 × 2,145.90
  4. Step 4: Simplify right side
    6,528.41x = 21,017,545.45
  5. Step 5: Solve for x
    x = 21,017,545.45/6,528.41
  6. Step 6: Final answer
    x = 3,219.40

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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.