Home / 5,486.19-7,570.75-3,129.09

Finding the Fourth Proportional to 5,486.19, 7,570.75 and 3,129.09

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Solution

The fourth proportional to 5,486.19, 7,570.75 and 3,129.09 is: 4,318.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.19 : 7,570.75 = 3,129.09 : x
  2. Step 2: Convert to fraction form
    5,486.19/7,570.75 = 3,129.09/x
  3. Step 3: Cross multiply
    5,486.19x = 7,570.75 × 3,129.09
  4. Step 4: Simplify right side
    5,486.19x = 23,689,558.12
  5. Step 5: Solve for x
    x = 23,689,558.12/5,486.19
  6. Step 6: Final answer
    x = 4,318.03

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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.