Home / 5,436.80-7,505.89-3,579.20

Finding the Fourth Proportional to 5,436.80, 7,505.89 and 3,579.20

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Solution

The fourth proportional to 5,436.80, 7,505.89 and 3,579.20 is: 4,941.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.80 : 7,505.89 = 3,579.20 : x
  2. Step 2: Convert to fraction form
    5,436.80/7,505.89 = 3,579.20/x
  3. Step 3: Cross multiply
    5,436.80x = 7,505.89 × 3,579.20
  4. Step 4: Simplify right side
    5,436.80x = 26,865,035.01
  5. Step 5: Solve for x
    x = 26,865,035.01/5,436.80
  6. Step 6: Final answer
    x = 4,941.34

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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.