Home / 4,136.75-6,205.16-1,215.10

Finding the Fourth Proportional to 4,136.75, 6,205.16 and 1,215.10

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Solution

The fourth proportional to 4,136.75, 6,205.16 and 1,215.10 is: 1,822.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,136.75 : 6,205.16 = 1,215.10 : x
  2. Step 2: Convert to fraction form
    4,136.75/6,205.16 = 1,215.10/x
  3. Step 3: Cross multiply
    4,136.75x = 6,205.16 × 1,215.10
  4. Step 4: Simplify right side
    4,136.75x = 7,539,889.92
  5. Step 5: Solve for x
    x = 7,539,889.92/4,136.75
  6. Step 6: Final answer
    x = 1,822.66

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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.