Home / 4,239.90-6,363.45-3,419.10

Finding the Fourth Proportional to 4,239.90, 6,363.45 and 3,419.10

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Solution

The fourth proportional to 4,239.90, 6,363.45 and 3,419.10 is: 5,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,239.90 : 6,363.45 = 3,419.10 : x
  2. Step 2: Convert to fraction form
    4,239.90/6,363.45 = 3,419.10/x
  3. Step 3: Cross multiply
    4,239.90x = 6,363.45 × 3,419.10
  4. Step 4: Simplify right side
    4,239.90x = 21,757,271.90
  5. Step 5: Solve for x
    x = 21,757,271.90/4,239.90
  6. Step 6: Final answer
    x = 5,131.55

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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.