Home / 5,628.16-8,439.59-3,288.84

Finding the Fourth Proportional to 5,628.16, 8,439.59 and 3,288.84

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Solution

The fourth proportional to 5,628.16, 8,439.59 and 3,288.84 is: 4,931.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.16 : 8,439.59 = 3,288.84 : x
  2. Step 2: Convert to fraction form
    5,628.16/8,439.59 = 3,288.84/x
  3. Step 3: Cross multiply
    5,628.16x = 8,439.59 × 3,288.84
  4. Step 4: Simplify right side
    5,628.16x = 27,756,498.09
  5. Step 5: Solve for x
    x = 27,756,498.09/5,628.16
  6. Step 6: Final answer
    x = 4,931.72

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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.