Home / 3,888.81-5,823.93-2,131.18

Finding the Fourth Proportional to 3,888.81, 5,823.93 and 2,131.18

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Solution

The fourth proportional to 3,888.81, 5,823.93 and 2,131.18 is: 3,191.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.81 : 5,823.93 = 2,131.18 : x
  2. Step 2: Convert to fraction form
    3,888.81/5,823.93 = 2,131.18/x
  3. Step 3: Cross multiply
    3,888.81x = 5,823.93 × 2,131.18
  4. Step 4: Simplify right side
    3,888.81x = 12,411,843.14
  5. Step 5: Solve for x
    x = 12,411,843.14/3,888.81
  6. Step 6: Final answer
    x = 3,191.68

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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.