Home / 2,630.37-3,947.14-1,521.21

Finding the Fourth Proportional to 2,630.37, 3,947.14 and 1,521.21

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Solution

The fourth proportional to 2,630.37, 3,947.14 and 1,521.21 is: 2,282.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.37 : 3,947.14 = 1,521.21 : x
  2. Step 2: Convert to fraction form
    2,630.37/3,947.14 = 1,521.21/x
  3. Step 3: Cross multiply
    2,630.37x = 3,947.14 × 1,521.21
  4. Step 4: Simplify right side
    2,630.37x = 6,004,428.84
  5. Step 5: Solve for x
    x = 6,004,428.84/2,630.37
  6. Step 6: Final answer
    x = 2,282.73

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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.