Home / 4,690.68-7,029.50-3,878.72

Finding the Fourth Proportional to 4,690.68, 7,029.50 and 3,878.72

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Solution

The fourth proportional to 4,690.68, 7,029.50 and 3,878.72 is: 5,812.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,690.68 : 7,029.50 = 3,878.72 : x
  2. Step 2: Convert to fraction form
    4,690.68/7,029.50 = 3,878.72/x
  3. Step 3: Cross multiply
    4,690.68x = 7,029.50 × 3,878.72
  4. Step 4: Simplify right side
    4,690.68x = 27,265,462.24
  5. Step 5: Solve for x
    x = 27,265,462.24/4,690.68
  6. Step 6: Final answer
    x = 5,812.69

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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.