Home / 7,589.40-11,381.36-3,207.20

Finding the Fourth Proportional to 7,589.40, 11,381.36 and 3,207.20

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Solution

The fourth proportional to 7,589.40, 11,381.36 and 3,207.20 is: 4,809.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,589.40 : 11,381.36 = 3,207.20 : x
  2. Step 2: Convert to fraction form
    7,589.40/11,381.36 = 3,207.20/x
  3. Step 3: Cross multiply
    7,589.40x = 11,381.36 × 3,207.20
  4. Step 4: Simplify right side
    7,589.40x = 36,502,240.89
  5. Step 5: Solve for x
    x = 36,502,240.89/7,589.40
  6. Step 6: Final answer
    x = 4,809.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.