Home / 5,239.49-7,230.51-2,881.64

Finding the Fourth Proportional to 5,239.49, 7,230.51 and 2,881.64

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Solution

The fourth proportional to 5,239.49, 7,230.51 and 2,881.64 is: 3,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.49 : 7,230.51 = 2,881.64 : x
  2. Step 2: Convert to fraction form
    5,239.49/7,230.51 = 2,881.64/x
  3. Step 3: Cross multiply
    5,239.49x = 7,230.51 × 2,881.64
  4. Step 4: Simplify right side
    5,239.49x = 20,835,690.68
  5. Step 5: Solve for x
    x = 20,835,690.68/5,239.49
  6. Step 6: Final answer
    x = 3,976.67

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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.