Home / 5,518.17-7,615.20-3,160.26

Finding the Fourth Proportional to 5,518.17, 7,615.20 and 3,160.26

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Solution

The fourth proportional to 5,518.17, 7,615.20 and 3,160.26 is: 4,361.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.17 : 7,615.20 = 3,160.26 : x
  2. Step 2: Convert to fraction form
    5,518.17/7,615.20 = 3,160.26/x
  3. Step 3: Cross multiply
    5,518.17x = 7,615.20 × 3,160.26
  4. Step 4: Simplify right side
    5,518.17x = 24,066,011.95
  5. Step 5: Solve for x
    x = 24,066,011.95/5,518.17
  6. Step 6: Final answer
    x = 4,361.23

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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.