Home / 5,440.80-7,506.72-3,201.60

Finding the Fourth Proportional to 5,440.80, 7,506.72 and 3,201.60

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Solution

The fourth proportional to 5,440.80, 7,506.72 and 3,201.60 is: 4,417.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.80 : 7,506.72 = 3,201.60 : x
  2. Step 2: Convert to fraction form
    5,440.80/7,506.72 = 3,201.60/x
  3. Step 3: Cross multiply
    5,440.80x = 7,506.72 × 3,201.60
  4. Step 4: Simplify right side
    5,440.80x = 24,033,514.75
  5. Step 5: Solve for x
    x = 24,033,514.75/5,440.80
  6. Step 6: Final answer
    x = 4,417.28

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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.