Home / 1,712.88-2,563.56-1,403.76

Finding the Fourth Proportional to 1,712.88, 2,563.56 and 1,403.76

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Solution

The fourth proportional to 1,712.88, 2,563.56 and 1,403.76 is: 2,100.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.88 : 2,563.56 = 1,403.76 : x
  2. Step 2: Convert to fraction form
    1,712.88/2,563.56 = 1,403.76/x
  3. Step 3: Cross multiply
    1,712.88x = 2,563.56 × 1,403.76
  4. Step 4: Simplify right side
    1,712.88x = 3,598,622.99
  5. Step 5: Solve for x
    x = 3,598,622.99/1,712.88
  6. Step 6: Final answer
    x = 2,100.92

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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.