Home / 2,176.45-3,003.52-1,325.45

Finding the Fourth Proportional to 2,176.45, 3,003.52 and 1,325.45

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Solution

The fourth proportional to 2,176.45, 3,003.52 and 1,325.45 is: 1,829.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.45 : 3,003.52 = 1,325.45 : x
  2. Step 2: Convert to fraction form
    2,176.45/3,003.52 = 1,325.45/x
  3. Step 3: Cross multiply
    2,176.45x = 3,003.52 × 1,325.45
  4. Step 4: Simplify right side
    2,176.45x = 3,981,015.58
  5. Step 5: Solve for x
    x = 3,981,015.58/2,176.45
  6. Step 6: Final answer
    x = 1,829.13

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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.