Home / 1,383.16-2,063.59-1,332.75

Finding the Fourth Proportional to 1,383.16, 2,063.59 and 1,332.75

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Solution

The fourth proportional to 1,383.16, 2,063.59 and 1,332.75 is: 1,988.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383.16 : 2,063.59 = 1,332.75 : x
  2. Step 2: Convert to fraction form
    1,383.16/2,063.59 = 1,332.75/x
  3. Step 3: Cross multiply
    1,383.16x = 2,063.59 × 1,332.75
  4. Step 4: Simplify right side
    1,383.16x = 2,750,249.57
  5. Step 5: Solve for x
    x = 2,750,249.57/1,383.16
  6. Step 6: Final answer
    x = 1,988.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.