Home / 5,214.68-7,820.56-2,616.92

Finding the Fourth Proportional to 5,214.68, 7,820.56 and 2,616.92

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Solution

The fourth proportional to 5,214.68, 7,820.56 and 2,616.92 is: 3,924.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.68 : 7,820.56 = 2,616.92 : x
  2. Step 2: Convert to fraction form
    5,214.68/7,820.56 = 2,616.92/x
  3. Step 3: Cross multiply
    5,214.68x = 7,820.56 × 2,616.92
  4. Step 4: Simplify right side
    5,214.68x = 20,465,779.88
  5. Step 5: Solve for x
    x = 20,465,779.88/5,214.68
  6. Step 6: Final answer
    x = 3,924.65

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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.