Home / 1,707.68-2,356.19-961.37

Finding the Fourth Proportional to 1,707.68, 2,356.19 and 961.37

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Solution

The fourth proportional to 1,707.68, 2,356.19 and 961.37 is: 1,326.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.68 : 2,356.19 = 961.37 : x
  2. Step 2: Convert to fraction form
    1,707.68/2,356.19 = 961.37/x
  3. Step 3: Cross multiply
    1,707.68x = 2,356.19 × 961.37
  4. Step 4: Simplify right side
    1,707.68x = 2,265,166.23
  5. Step 5: Solve for x
    x = 2,265,166.23/1,707.68
  6. Step 6: Final answer
    x = 1,326.46

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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.