Home / 2,910.05-4,015.80-1,583.75

Finding the Fourth Proportional to 2,910.05, 4,015.80 and 1,583.75

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Solution

The fourth proportional to 2,910.05, 4,015.80 and 1,583.75 is: 2,185.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.05 : 4,015.80 = 1,583.75 : x
  2. Step 2: Convert to fraction form
    2,910.05/4,015.80 = 1,583.75/x
  3. Step 3: Cross multiply
    2,910.05x = 4,015.80 × 1,583.75
  4. Step 4: Simplify right side
    2,910.05x = 6,360,003.17
  5. Step 5: Solve for x
    x = 6,360,003.17/2,910.05
  6. Step 6: Final answer
    x = 2,185.53

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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.