Home / 1,960.47-2,705.58-1,296.18

Finding the Fourth Proportional to 1,960.47, 2,705.58 and 1,296.18

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Solution

The fourth proportional to 1,960.47, 2,705.58 and 1,296.18 is: 1,788.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.47 : 2,705.58 = 1,296.18 : x
  2. Step 2: Convert to fraction form
    1,960.47/2,705.58 = 1,296.18/x
  3. Step 3: Cross multiply
    1,960.47x = 2,705.58 × 1,296.18
  4. Step 4: Simplify right side
    1,960.47x = 3,506,918.68
  5. Step 5: Solve for x
    x = 3,506,918.68/1,960.47
  6. Step 6: Final answer
    x = 1,788.82

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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.