Home / 1,712.08-2,568.12-1,439.92

Finding the Fourth Proportional to 1,712.08, 2,568.12 and 1,439.92

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Solution

The fourth proportional to 1,712.08, 2,568.12 and 1,439.92 is: 2,159.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.08 : 2,568.12 = 1,439.92 : x
  2. Step 2: Convert to fraction form
    1,712.08/2,568.12 = 1,439.92/x
  3. Step 3: Cross multiply
    1,712.08x = 2,568.12 × 1,439.92
  4. Step 4: Simplify right side
    1,712.08x = 3,697,887.35
  5. Step 5: Solve for x
    x = 3,697,887.35/1,712.08
  6. Step 6: Final answer
    x = 2,159.88

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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.