Home / 2,320.76-3,202.66-1,272.84

Finding the Fourth Proportional to 2,320.76, 3,202.66 and 1,272.84

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Solution

The fourth proportional to 2,320.76, 3,202.66 and 1,272.84 is: 1,756.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.76 : 3,202.66 = 1,272.84 : x
  2. Step 2: Convert to fraction form
    2,320.76/3,202.66 = 1,272.84/x
  3. Step 3: Cross multiply
    2,320.76x = 3,202.66 × 1,272.84
  4. Step 4: Simplify right side
    2,320.76x = 4,076,473.75
  5. Step 5: Solve for x
    x = 4,076,473.75/2,320.76
  6. Step 6: Final answer
    x = 1,756.53

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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.