Home / 2,920.41-4,028.54-1,856.34

Finding the Fourth Proportional to 2,920.41, 4,028.54 and 1,856.34

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Solution

The fourth proportional to 2,920.41, 4,028.54 and 1,856.34 is: 2,560.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.41 : 4,028.54 = 1,856.34 : x
  2. Step 2: Convert to fraction form
    2,920.41/4,028.54 = 1,856.34/x
  3. Step 3: Cross multiply
    2,920.41x = 4,028.54 × 1,856.34
  4. Step 4: Simplify right side
    2,920.41x = 7,478,330.66
  5. Step 5: Solve for x
    x = 7,478,330.66/2,920.41
  6. Step 6: Final answer
    x = 2,560.71

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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.