Home / 1,707.17-2,355.93-961.15

Finding the Fourth Proportional to 1,707.17, 2,355.93 and 961.15

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Solution

The fourth proportional to 1,707.17, 2,355.93 and 961.15 is: 1,326.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.17 : 2,355.93 = 961.15 : x
  2. Step 2: Convert to fraction form
    1,707.17/2,355.93 = 961.15/x
  3. Step 3: Cross multiply
    1,707.17x = 2,355.93 × 961.15
  4. Step 4: Simplify right side
    1,707.17x = 2,264,413.09
  5. Step 5: Solve for x
    x = 2,264,413.09/1,707.17
  6. Step 6: Final answer
    x = 1,326.42

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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.