Home / 1,708.88-2,563.36-1,278.76

Finding the Fourth Proportional to 1,708.88, 2,563.36 and 1,278.76

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Solution

The fourth proportional to 1,708.88, 2,563.36 and 1,278.76 is: 1,918.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,708.88 : 2,563.36 = 1,278.76 : x
  2. Step 2: Convert to fraction form
    1,708.88/2,563.36 = 1,278.76/x
  3. Step 3: Cross multiply
    1,708.88x = 2,563.36 × 1,278.76
  4. Step 4: Simplify right side
    1,708.88x = 3,277,922.23
  5. Step 5: Solve for x
    x = 3,277,922.23/1,708.88
  6. Step 6: Final answer
    x = 1,918.17

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1.5x scale

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.