Home / 4,981.02-6,875.22-2,991.96

Finding the Fourth Proportional to 4,981.02, 6,875.22 and 2,991.96

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Solution

The fourth proportional to 4,981.02, 6,875.22 and 2,991.96 is: 4,129.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.02 : 6,875.22 = 2,991.96 : x
  2. Step 2: Convert to fraction form
    4,981.02/6,875.22 = 2,991.96/x
  3. Step 3: Cross multiply
    4,981.02x = 6,875.22 × 2,991.96
  4. Step 4: Simplify right side
    4,981.02x = 20,570,383.23
  5. Step 5: Solve for x
    x = 20,570,383.23/4,981.02
  6. Step 6: Final answer
    x = 4,129.75

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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.