Home / 7,223.20-9,967.44-4,238.80

Finding the Fourth Proportional to 7,223.20, 9,967.44 and 4,238.80

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Solution

The fourth proportional to 7,223.20, 9,967.44 and 4,238.80 is: 5,849.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,223.20 : 9,967.44 = 4,238.80 : x
  2. Step 2: Convert to fraction form
    7,223.20/9,967.44 = 4,238.80/x
  3. Step 3: Cross multiply
    7,223.20x = 9,967.44 × 4,238.80
  4. Step 4: Simplify right side
    7,223.20x = 42,249,984.67
  5. Step 5: Solve for x
    x = 42,249,984.67/7,223.20
  6. Step 6: Final answer
    x = 5,849.21

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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.