Home / 5,436.40-7,502.72-3,311.43

Finding the Fourth Proportional to 5,436.40, 7,502.72 and 3,311.43

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Solution

The fourth proportional to 5,436.40, 7,502.72 and 3,311.43 is: 4,570.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.40 : 7,502.72 = 3,311.43 : x
  2. Step 2: Convert to fraction form
    5,436.40/7,502.72 = 3,311.43/x
  3. Step 3: Cross multiply
    5,436.40x = 7,502.72 × 3,311.43
  4. Step 4: Simplify right side
    5,436.40x = 24,844,698.42
  5. Step 5: Solve for x
    x = 24,844,698.42/5,436.40
  6. Step 6: Final answer
    x = 4,570.06

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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.