Home / 2,813.31-4,216.75-1,715.24

Finding the Fourth Proportional to 2,813.31, 4,216.75 and 1,715.24

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Solution

The fourth proportional to 2,813.31, 4,216.75 and 1,715.24 is: 2,570.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.31 : 4,216.75 = 1,715.24 : x
  2. Step 2: Convert to fraction form
    2,813.31/4,216.75 = 1,715.24/x
  3. Step 3: Cross multiply
    2,813.31x = 4,216.75 × 1,715.24
  4. Step 4: Simplify right side
    2,813.31x = 7,232,712.90
  5. Step 5: Solve for x
    x = 7,232,712.90/2,813.31
  6. Step 6: Final answer
    x = 2,570.89

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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.