Home / 5,518.30-7,615.39-3,000.58

Finding the Fourth Proportional to 5,518.30, 7,615.39 and 3,000.58

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Solution

The fourth proportional to 5,518.30, 7,615.39 and 3,000.58 is: 4,140.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.30 : 7,615.39 = 3,000.58 : x
  2. Step 2: Convert to fraction form
    5,518.30/7,615.39 = 3,000.58/x
  3. Step 3: Cross multiply
    5,518.30x = 7,615.39 × 3,000.58
  4. Step 4: Simplify right side
    5,518.30x = 22,850,586.93
  5. Step 5: Solve for x
    x = 22,850,586.93/5,518.30
  6. Step 6: Final answer
    x = 4,140.87

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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.