Home / 3,647.28-5,033.07-2,155.08

Finding the Fourth Proportional to 3,647.28, 5,033.07 and 2,155.08

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Solution

The fourth proportional to 3,647.28, 5,033.07 and 2,155.08 is: 2,973.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,647.28 : 5,033.07 = 2,155.08 : x
  2. Step 2: Convert to fraction form
    3,647.28/5,033.07 = 2,155.08/x
  3. Step 3: Cross multiply
    3,647.28x = 5,033.07 × 2,155.08
  4. Step 4: Simplify right side
    3,647.28x = 10,846,668.50
  5. Step 5: Solve for x
    x = 10,846,668.50/3,647.28
  6. Step 6: Final answer
    x = 2,973.91

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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.