Home / 4,986.36-6,882.57-2,890.08

Finding the Fourth Proportional to 4,986.36, 6,882.57 and 2,890.08

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Solution

The fourth proportional to 4,986.36, 6,882.57 and 2,890.08 is: 3,989.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.36 : 6,882.57 = 2,890.08 : x
  2. Step 2: Convert to fraction form
    4,986.36/6,882.57 = 2,890.08/x
  3. Step 3: Cross multiply
    4,986.36x = 6,882.57 × 2,890.08
  4. Step 4: Simplify right side
    4,986.36x = 19,891,177.91
  5. Step 5: Solve for x
    x = 19,891,177.91/4,986.36
  6. Step 6: Final answer
    x = 3,989.12

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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.