Home / 1,671.88-2,306.34-1,008.28

Finding the Fourth Proportional to 1,671.88, 2,306.34 and 1,008.28

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Solution

The fourth proportional to 1,671.88, 2,306.34 and 1,008.28 is: 1,390.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.88 : 2,306.34 = 1,008.28 : x
  2. Step 2: Convert to fraction form
    1,671.88/2,306.34 = 1,008.28/x
  3. Step 3: Cross multiply
    1,671.88x = 2,306.34 × 1,008.28
  4. Step 4: Simplify right side
    1,671.88x = 2,325,436.50
  5. Step 5: Solve for x
    x = 2,325,436.50/1,671.88
  6. Step 6: Final answer
    x = 1,390.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.