Home / 4,927-7,387.56-1,639.24

Finding the Fourth Proportional to 4,927, 7,387.56 and 1,639.24

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Solution

The fourth proportional to 4,927, 7,387.56 and 1,639.24 is: 2,457.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,927 : 7,387.56 = 1,639.24 : x
  2. Step 2: Convert to fraction form
    4,927/7,387.56 = 1,639.24/x
  3. Step 3: Cross multiply
    4,927x = 7,387.56 × 1,639.24
  4. Step 4: Simplify right side
    4,927x = 12,109,983.85
  5. Step 5: Solve for x
    x = 12,109,983.85/4,927
  6. Step 6: Final answer
    x = 2,457.88

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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.