Home / 3,870.37-5,805.96-1,273.51

Finding the Fourth Proportional to 3,870.37, 5,805.96 and 1,273.51

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Solution

The fourth proportional to 3,870.37, 5,805.96 and 1,273.51 is: 1,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870.37 : 5,805.96 = 1,273.51 : x
  2. Step 2: Convert to fraction form
    3,870.37/5,805.96 = 1,273.51/x
  3. Step 3: Cross multiply
    3,870.37x = 5,805.96 × 1,273.51
  4. Step 4: Simplify right side
    3,870.37x = 7,393,948.12
  5. Step 5: Solve for x
    x = 7,393,948.12/3,870.37
  6. Step 6: Final answer
    x = 1,910.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.