Home / 5,209.33-7,188.79-2,971.07

Finding the Fourth Proportional to 5,209.33, 7,188.79 and 2,971.07

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Solution

The fourth proportional to 5,209.33, 7,188.79 and 2,971.07 is: 4,100.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.33 : 7,188.79 = 2,971.07 : x
  2. Step 2: Convert to fraction form
    5,209.33/7,188.79 = 2,971.07/x
  3. Step 3: Cross multiply
    5,209.33x = 7,188.79 × 2,971.07
  4. Step 4: Simplify right side
    5,209.33x = 21,358,437.47
  5. Step 5: Solve for x
    x = 21,358,437.47/5,209.33
  6. Step 6: Final answer
    x = 4,100.03

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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.