Home / 5,518.80-7,615.96-3,000.92

Finding the Fourth Proportional to 5,518.80, 7,615.96 and 3,000.92

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Solution

The fourth proportional to 5,518.80, 7,615.96 and 3,000.92 is: 4,141.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.80 : 7,615.96 = 3,000.92 : x
  2. Step 2: Convert to fraction form
    5,518.80/7,615.96 = 3,000.92/x
  3. Step 3: Cross multiply
    5,518.80x = 7,615.96 × 3,000.92
  4. Step 4: Simplify right side
    5,518.80x = 22,854,886.68
  5. Step 5: Solve for x
    x = 22,854,886.68/5,518.80
  6. Step 6: Final answer
    x = 4,141.28

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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.