Home / 3,855,760.23-5,321,128.50-2,136,880.92

Finding the Fourth Proportional to 3,855,760.23, 5,321,128.50 and 2,136,880.92

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Solution

The fourth proportional to 3,855,760.23, 5,321,128.50 and 2,136,880.92 is: 2,948,995.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,760.23 : 5,321,128.50 = 2,136,880.92 : x
  2. Step 2: Convert to fraction form
    3,855,760.23/5,321,128.50 = 2,136,880.92/x
  3. Step 3: Cross multiply
    3,855,760.23x = 5,321,128.50 × 2,136,880.92
  4. Step 4: Simplify right side
    3,855,760.23x = 11,370,617,964,518.22
  5. Step 5: Solve for x
    x = 11,370,617,964,518.22/3,855,760.23
  6. Step 6: Final answer
    x = 2,948,995.08

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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.