Home / 5,518.28-7,615.27-3,000.42

Finding the Fourth Proportional to 5,518.28, 7,615.27 and 3,000.42

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Solution

The fourth proportional to 5,518.28, 7,615.27 and 3,000.42 is: 4,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.28 : 7,615.27 = 3,000.42 : x
  2. Step 2: Convert to fraction form
    5,518.28/7,615.27 = 3,000.42/x
  3. Step 3: Cross multiply
    5,518.28x = 7,615.27 × 3,000.42
  4. Step 4: Simplify right side
    5,518.28x = 22,848,995.29
  5. Step 5: Solve for x
    x = 22,848,995.29/5,518.28
  6. Step 6: Final answer
    x = 4,140.60

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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.