Home / 2,180.15-3,007.08-1,433.87

Finding the Fourth Proportional to 2,180.15, 3,007.08 and 1,433.87

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Solution

The fourth proportional to 2,180.15, 3,007.08 and 1,433.87 is: 1,977.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.15 : 3,007.08 = 1,433.87 : x
  2. Step 2: Convert to fraction form
    2,180.15/3,007.08 = 1,433.87/x
  3. Step 3: Cross multiply
    2,180.15x = 3,007.08 × 1,433.87
  4. Step 4: Simplify right side
    2,180.15x = 4,311,746.76
  5. Step 5: Solve for x
    x = 4,311,746.76/2,180.15
  6. Step 6: Final answer
    x = 1,977.73

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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.