Home / 5,628.36-7,767.90-4,228.68

Finding the Fourth Proportional to 5,628.36, 7,767.90 and 4,228.68

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Solution

The fourth proportional to 5,628.36, 7,767.90 and 4,228.68 is: 5,836.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.36 : 7,767.90 = 4,228.68 : x
  2. Step 2: Convert to fraction form
    5,628.36/7,767.90 = 4,228.68/x
  3. Step 3: Cross multiply
    5,628.36x = 7,767.90 × 4,228.68
  4. Step 4: Simplify right side
    5,628.36x = 32,847,963.37
  5. Step 5: Solve for x
    x = 32,847,963.37/5,628.36
  6. Step 6: Final answer
    x = 5,836.15

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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.