Home / 5,216.64-7,199.04-2,858.70

Finding the Fourth Proportional to 5,216.64, 7,199.04 and 2,858.70

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Solution

The fourth proportional to 5,216.64, 7,199.04 and 2,858.70 is: 3,945.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.64 : 7,199.04 = 2,858.70 : x
  2. Step 2: Convert to fraction form
    5,216.64/7,199.04 = 2,858.70/x
  3. Step 3: Cross multiply
    5,216.64x = 7,199.04 × 2,858.70
  4. Step 4: Simplify right side
    5,216.64x = 20,579,895.65
  5. Step 5: Solve for x
    x = 20,579,895.65/5,216.64
  6. Step 6: Final answer
    x = 3,945.05

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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.