Home / 5,209.07-7,189.08-2,971.49

Finding the Fourth Proportional to 5,209.07, 7,189.08 and 2,971.49

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Solution

The fourth proportional to 5,209.07, 7,189.08 and 2,971.49 is: 4,100.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.07 : 7,189.08 = 2,971.49 : x
  2. Step 2: Convert to fraction form
    5,209.07/7,189.08 = 2,971.49/x
  3. Step 3: Cross multiply
    5,209.07x = 7,189.08 × 2,971.49
  4. Step 4: Simplify right side
    5,209.07x = 21,362,281.49
  5. Step 5: Solve for x
    x = 21,362,281.49/5,209.07
  6. Step 6: Final answer
    x = 4,100.98

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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.