Home / 5,268.60-7,903.76-1,981.96

Finding the Fourth Proportional to 5,268.60, 7,903.76 and 1,981.96

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Solution

The fourth proportional to 5,268.60, 7,903.76 and 1,981.96 is: 2,973.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.60 : 7,903.76 = 1,981.96 : x
  2. Step 2: Convert to fraction form
    5,268.60/7,903.76 = 1,981.96/x
  3. Step 3: Cross multiply
    5,268.60x = 7,903.76 × 1,981.96
  4. Step 4: Simplify right side
    5,268.60x = 15,664,936.17
  5. Step 5: Solve for x
    x = 15,664,936.17/5,268.60
  6. Step 6: Final answer
    x = 2,973.26

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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.