Home / 5,538.50-7,643.08-3,180.66

Finding the Fourth Proportional to 5,538.50, 7,643.08 and 3,180.66

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Solution

The fourth proportional to 5,538.50, 7,643.08 and 3,180.66 is: 4,389.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.50 : 7,643.08 = 3,180.66 : x
  2. Step 2: Convert to fraction form
    5,538.50/7,643.08 = 3,180.66/x
  3. Step 3: Cross multiply
    5,538.50x = 7,643.08 × 3,180.66
  4. Step 4: Simplify right side
    5,538.50x = 24,310,030.88
  5. Step 5: Solve for x
    x = 24,310,030.88/5,538.50
  6. Step 6: Final answer
    x = 4,389.28

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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.