Home / 5,381.12-7,409.07-4,889.03

Finding the Fourth Proportional to 5,381.12, 7,409.07 and 4,889.03

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Solution

The fourth proportional to 5,381.12, 7,409.07 and 4,889.03 is: 6,731.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.12 : 7,409.07 = 4,889.03 : x
  2. Step 2: Convert to fraction form
    5,381.12/7,409.07 = 4,889.03/x
  3. Step 3: Cross multiply
    5,381.12x = 7,409.07 × 4,889.03
  4. Step 4: Simplify right side
    5,381.12x = 36,223,165.50
  5. Step 5: Solve for x
    x = 36,223,165.50/5,381.12
  6. Step 6: Final answer
    x = 6,731.53

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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.