Home / 5,131.84-7,082.40-3,559.36

Finding the Fourth Proportional to 5,131.84, 7,082.40 and 3,559.36

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Solution

The fourth proportional to 5,131.84, 7,082.40 and 3,559.36 is: 4,912.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.84 : 7,082.40 = 3,559.36 : x
  2. Step 2: Convert to fraction form
    5,131.84/7,082.40 = 3,559.36/x
  3. Step 3: Cross multiply
    5,131.84x = 7,082.40 × 3,559.36
  4. Step 4: Simplify right side
    5,131.84x = 25,208,811.26
  5. Step 5: Solve for x
    x = 25,208,811.26/5,131.84
  6. Step 6: Final answer
    x = 4,912.24

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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.