Home / 5,518.89-7,615.87-3,160.57

Finding the Fourth Proportional to 5,518.89, 7,615.87 and 3,160.57

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Solution

The fourth proportional to 5,518.89, 7,615.87 and 3,160.57 is: 4,361.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.89 : 7,615.87 = 3,160.57 : x
  2. Step 2: Convert to fraction form
    5,518.89/7,615.87 = 3,160.57/x
  3. Step 3: Cross multiply
    5,518.89x = 7,615.87 × 3,160.57
  4. Step 4: Simplify right side
    5,518.89x = 24,070,490.25
  5. Step 5: Solve for x
    x = 24,070,490.25/5,518.89
  6. Step 6: Final answer
    x = 4,361.47

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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.