Home / 5,305.20-7,310.88-5,220.24

Finding the Fourth Proportional to 5,305.20, 7,310.88 and 5,220.24

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Solution

The fourth proportional to 5,305.20, 7,310.88 and 5,220.24 is: 7,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,305.20 : 7,310.88 = 5,220.24 : x
  2. Step 2: Convert to fraction form
    5,305.20/7,310.88 = 5,220.24/x
  3. Step 3: Cross multiply
    5,305.20x = 7,310.88 × 5,220.24
  4. Step 4: Simplify right side
    5,305.20x = 38,164,548.21
  5. Step 5: Solve for x
    x = 38,164,548.21/5,305.20
  6. Step 6: Final answer
    x = 7,193.80

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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.