Home / 7,589.69-11,385.59-2,658.20

Finding the Fourth Proportional to 7,589.69, 11,385.59 and 2,658.20

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Solution

The fourth proportional to 7,589.69, 11,385.59 and 2,658.20 is: 3,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,589.69 : 11,385.59 = 2,658.20 : x
  2. Step 2: Convert to fraction form
    7,589.69/11,385.59 = 2,658.20/x
  3. Step 3: Cross multiply
    7,589.69x = 11,385.59 × 2,658.20
  4. Step 4: Simplify right side
    7,589.69x = 30,265,175.34
  5. Step 5: Solve for x
    x = 30,265,175.34/7,589.69
  6. Step 6: Final answer
    x = 3,987.67

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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.