Home / 5,380.40-7,427.45-3,590.84

Finding the Fourth Proportional to 5,380.40, 7,427.45 and 3,590.84

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Solution

The fourth proportional to 5,380.40, 7,427.45 and 3,590.84 is: 4,957.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.40 : 7,427.45 = 3,590.84 : x
  2. Step 2: Convert to fraction form
    5,380.40/7,427.45 = 3,590.84/x
  3. Step 3: Cross multiply
    5,380.40x = 7,427.45 × 3,590.84
  4. Step 4: Simplify right side
    5,380.40x = 26,670,784.56
  5. Step 5: Solve for x
    x = 26,670,784.56/5,380.40
  6. Step 6: Final answer
    x = 4,957.03

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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.