Home / 3,415.79-5,125.67-1,441.30

Finding the Fourth Proportional to 3,415.79, 5,125.67 and 1,441.30

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Solution

The fourth proportional to 3,415.79, 5,125.67 and 1,441.30 is: 2,162.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.79 : 5,125.67 = 1,441.30 : x
  2. Step 2: Convert to fraction form
    3,415.79/5,125.67 = 1,441.30/x
  3. Step 3: Cross multiply
    3,415.79x = 5,125.67 × 1,441.30
  4. Step 4: Simplify right side
    3,415.79x = 7,387,628.17
  5. Step 5: Solve for x
    x = 7,387,628.17/3,415.79
  6. Step 6: Final answer
    x = 2,162.79

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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.