Home / 4,242.75-6,363.71-1,321.01

Finding the Fourth Proportional to 4,242.75, 6,363.71 and 1,321.01

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Solution

The fourth proportional to 4,242.75, 6,363.71 and 1,321.01 is: 1,981.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242.75 : 6,363.71 = 1,321.01 : x
  2. Step 2: Convert to fraction form
    4,242.75/6,363.71 = 1,321.01/x
  3. Step 3: Cross multiply
    4,242.75x = 6,363.71 × 1,321.01
  4. Step 4: Simplify right side
    4,242.75x = 8,406,524.55
  5. Step 5: Solve for x
    x = 8,406,524.55/4,242.75
  6. Step 6: Final answer
    x = 1,981.39

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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.