Home / 4,902.21-6,762.54-3,131.95

Finding the Fourth Proportional to 4,902.21, 6,762.54 and 3,131.95

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Solution

The fourth proportional to 4,902.21, 6,762.54 and 3,131.95 is: 4,320.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,902.21 : 6,762.54 = 3,131.95 : x
  2. Step 2: Convert to fraction form
    4,902.21/6,762.54 = 3,131.95/x
  3. Step 3: Cross multiply
    4,902.21x = 6,762.54 × 3,131.95
  4. Step 4: Simplify right side
    4,902.21x = 21,179,937.15
  5. Step 5: Solve for x
    x = 21,179,937.15/4,902.21
  6. Step 6: Final answer
    x = 4,320.49

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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.