Home / 5,621.12-7,739.52-4,623.20

Finding the Fourth Proportional to 5,621.12, 7,739.52 and 4,623.20

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Solution

The fourth proportional to 5,621.12, 7,739.52 and 4,623.20 is: 6,365.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.12 : 7,739.52 = 4,623.20 : x
  2. Step 2: Convert to fraction form
    5,621.12/7,739.52 = 4,623.20/x
  3. Step 3: Cross multiply
    5,621.12x = 7,739.52 × 4,623.20
  4. Step 4: Simplify right side
    5,621.12x = 35,781,348.86
  5. Step 5: Solve for x
    x = 35,781,348.86/5,621.12
  6. Step 6: Final answer
    x = 6,365.52

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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.