Home / 2,620.59-3,931.25-888.75

Finding the Fourth Proportional to 2,620.59, 3,931.25 and 888.75

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Solution

The fourth proportional to 2,620.59, 3,931.25 and 888.75 is: 1,333.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.59 : 3,931.25 = 888.75 : x
  2. Step 2: Convert to fraction form
    2,620.59/3,931.25 = 888.75/x
  3. Step 3: Cross multiply
    2,620.59x = 3,931.25 × 888.75
  4. Step 4: Simplify right side
    2,620.59x = 3,493,893.99
  5. Step 5: Solve for x
    x = 3,493,893.99/2,620.59
  6. Step 6: Final answer
    x = 1,333.25

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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.