Home / 3,262.90-4,895.80-1,318.90

Finding the Fourth Proportional to 3,262.90, 4,895.80 and 1,318.90

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Solution

The fourth proportional to 3,262.90, 4,895.80 and 1,318.90 is: 1,978.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,262.90 : 4,895.80 = 1,318.90 : x
  2. Step 2: Convert to fraction form
    3,262.90/4,895.80 = 1,318.90/x
  3. Step 3: Cross multiply
    3,262.90x = 4,895.80 × 1,318.90
  4. Step 4: Simplify right side
    3,262.90x = 6,457,070.62
  5. Step 5: Solve for x
    x = 6,457,070.62/3,262.90
  6. Step 6: Final answer
    x = 1,978.94

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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.