Home / 5,217.64-7,200.32-2,980.22

Finding the Fourth Proportional to 5,217.64, 7,200.32 and 2,980.22

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Solution

The fourth proportional to 5,217.64, 7,200.32 and 2,980.22 is: 4,112.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.64 : 7,200.32 = 2,980.22 : x
  2. Step 2: Convert to fraction form
    5,217.64/7,200.32 = 2,980.22/x
  3. Step 3: Cross multiply
    5,217.64x = 7,200.32 × 2,980.22
  4. Step 4: Simplify right side
    5,217.64x = 21,458,486.77
  5. Step 5: Solve for x
    x = 21,458,486.77/5,217.64
  6. Step 6: Final answer
    x = 4,112.68

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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.