Home / 6,319.44-8,721-3,525.12

Finding the Fourth Proportional to 6,319.44, 8,721 and 3,525.12

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Solution

The fourth proportional to 6,319.44, 8,721 and 3,525.12 is: 4,864.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.44 : 8,721 = 3,525.12 : x
  2. Step 2: Convert to fraction form
    6,319.44/8,721 = 3,525.12/x
  3. Step 3: Cross multiply
    6,319.44x = 8,721 × 3,525.12
  4. Step 4: Simplify right side
    6,319.44x = 30,742,571.52
  5. Step 5: Solve for x
    x = 30,742,571.52/6,319.44
  6. Step 6: Final answer
    x = 4,864.76

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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.