Home / 2,906.64-4,011.12-1,580.36

Finding the Fourth Proportional to 2,906.64, 4,011.12 and 1,580.36

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Solution

The fourth proportional to 2,906.64, 4,011.12 and 1,580.36 is: 2,180.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.64 : 4,011.12 = 1,580.36 : x
  2. Step 2: Convert to fraction form
    2,906.64/4,011.12 = 1,580.36/x
  3. Step 3: Cross multiply
    2,906.64x = 4,011.12 × 1,580.36
  4. Step 4: Simplify right side
    2,906.64x = 6,338,993.55
  5. Step 5: Solve for x
    x = 6,338,993.55/2,906.64
  6. Step 6: Final answer
    x = 2,180.87

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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.