Home / 4,271.68-6,404.64-2,078.56

Finding the Fourth Proportional to 4,271.68, 6,404.64 and 2,078.56

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Solution

The fourth proportional to 4,271.68, 6,404.64 and 2,078.56 is: 3,116.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,271.68 : 6,404.64 = 2,078.56 : x
  2. Step 2: Convert to fraction form
    4,271.68/6,404.64 = 2,078.56/x
  3. Step 3: Cross multiply
    4,271.68x = 6,404.64 × 2,078.56
  4. Step 4: Simplify right side
    4,271.68x = 13,312,428.52
  5. Step 5: Solve for x
    x = 13,312,428.52/4,271.68
  6. Step 6: Final answer
    x = 3,116.44

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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.