Home / 4,973.47-6,861.09-2,980.57

Finding the Fourth Proportional to 4,973.47, 6,861.09 and 2,980.57

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Solution

The fourth proportional to 4,973.47, 6,861.09 and 2,980.57 is: 4,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,973.47 : 6,861.09 = 2,980.57 : x
  2. Step 2: Convert to fraction form
    4,973.47/6,861.09 = 2,980.57/x
  3. Step 3: Cross multiply
    4,973.47x = 6,861.09 × 2,980.57
  4. Step 4: Simplify right side
    4,973.47x = 20,449,929.85
  5. Step 5: Solve for x
    x = 20,449,929.85/4,973.47
  6. Step 6: Final answer
    x = 4,111.80

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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.