Home / 1,962.03-2,708.88-1,440.39

Finding the Fourth Proportional to 1,962.03, 2,708.88 and 1,440.39

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Solution

The fourth proportional to 1,962.03, 2,708.88 and 1,440.39 is: 1,988.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.03 : 2,708.88 = 1,440.39 : x
  2. Step 2: Convert to fraction form
    1,962.03/2,708.88 = 1,440.39/x
  3. Step 3: Cross multiply
    1,962.03x = 2,708.88 × 1,440.39
  4. Step 4: Simplify right side
    1,962.03x = 3,901,843.66
  5. Step 5: Solve for x
    x = 3,901,843.66/1,962.03
  6. Step 6: Final answer
    x = 1,988.68

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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.