Home / 5,206.60-7,185.10-3,216.68

Finding the Fourth Proportional to 5,206.60, 7,185.10 and 3,216.68

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Solution

The fourth proportional to 5,206.60, 7,185.10 and 3,216.68 is: 4,439.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,206.60 : 7,185.10 = 3,216.68 : x
  2. Step 2: Convert to fraction form
    5,206.60/7,185.10 = 3,216.68/x
  3. Step 3: Cross multiply
    5,206.60x = 7,185.10 × 3,216.68
  4. Step 4: Simplify right side
    5,206.60x = 23,112,167.47
  5. Step 5: Solve for x
    x = 23,112,167.47/5,206.60
  6. Step 6: Final answer
    x = 4,439.01

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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.