Home / 1,707.40-2,356.05-961.19

Finding the Fourth Proportional to 1,707.40, 2,356.05 and 961.19

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Solution

The fourth proportional to 1,707.40, 2,356.05 and 961.19 is: 1,326.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.40 : 2,356.05 = 961.19 : x
  2. Step 2: Convert to fraction form
    1,707.40/2,356.05 = 961.19/x
  3. Step 3: Cross multiply
    1,707.40x = 2,356.05 × 961.19
  4. Step 4: Simplify right side
    1,707.40x = 2,264,611.70
  5. Step 5: Solve for x
    x = 2,264,611.70/1,707.40
  6. Step 6: Final answer
    x = 1,326.35

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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.