Home / 1,707.14-2,355.38-961.05

Finding the Fourth Proportional to 1,707.14, 2,355.38 and 961.05

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Solution

The fourth proportional to 1,707.14, 2,355.38 and 961.05 is: 1,325.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.14 : 2,355.38 = 961.05 : x
  2. Step 2: Convert to fraction form
    1,707.14/2,355.38 = 961.05/x
  3. Step 3: Cross multiply
    1,707.14x = 2,355.38 × 961.05
  4. Step 4: Simplify right side
    1,707.14x = 2,263,633.14
  5. Step 5: Solve for x
    x = 2,263,633.14/1,707.14
  6. Step 6: Final answer
    x = 1,325.98

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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.