Home / 4,136.91-5,710.58-2,878.69

Finding the Fourth Proportional to 4,136.91, 5,710.58 and 2,878.69

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Solution

The fourth proportional to 4,136.91, 5,710.58 and 2,878.69 is: 3,973.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,136.91 : 5,710.58 = 2,878.69 : x
  2. Step 2: Convert to fraction form
    4,136.91/5,710.58 = 2,878.69/x
  3. Step 3: Cross multiply
    4,136.91x = 5,710.58 × 2,878.69
  4. Step 4: Simplify right side
    4,136.91x = 16,438,989.54
  5. Step 5: Solve for x
    x = 16,438,989.54/4,136.91
  6. Step 6: Final answer
    x = 3,973.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.