Home / 1,705.20-2,353.26-959.12

Finding the Fourth Proportional to 1,705.20, 2,353.26 and 959.12

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Solution

The fourth proportional to 1,705.20, 2,353.26 and 959.12 is: 1,323.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.20 : 2,353.26 = 959.12 : x
  2. Step 2: Convert to fraction form
    1,705.20/2,353.26 = 959.12/x
  3. Step 3: Cross multiply
    1,705.20x = 2,353.26 × 959.12
  4. Step 4: Simplify right side
    1,705.20x = 2,257,058.73
  5. Step 5: Solve for x
    x = 2,257,058.73/1,705.20
  6. Step 6: Final answer
    x = 1,323.63

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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.