Home / 4,223.48-6,330.90-2,139.62

Finding the Fourth Proportional to 4,223.48, 6,330.90 and 2,139.62

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Solution

The fourth proportional to 4,223.48, 6,330.90 and 2,139.62 is: 3,207.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,223.48 : 6,330.90 = 2,139.62 : x
  2. Step 2: Convert to fraction form
    4,223.48/6,330.90 = 2,139.62/x
  3. Step 3: Cross multiply
    4,223.48x = 6,330.90 × 2,139.62
  4. Step 4: Simplify right side
    4,223.48x = 13,545,720.26
  5. Step 5: Solve for x
    x = 13,545,720.26/4,223.48
  6. Step 6: Final answer
    x = 3,207.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.