Home / 2,920.24-4,381.80-2,141.02

Finding the Fourth Proportional to 2,920.24, 4,381.80 and 2,141.02

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Solution

The fourth proportional to 2,920.24, 4,381.80 and 2,141.02 is: 3,212.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.24 : 4,381.80 = 2,141.02 : x
  2. Step 2: Convert to fraction form
    2,920.24/4,381.80 = 2,141.02/x
  3. Step 3: Cross multiply
    2,920.24x = 4,381.80 × 2,141.02
  4. Step 4: Simplify right side
    2,920.24x = 9,381,521.44
  5. Step 5: Solve for x
    x = 9,381,521.44/2,920.24
  6. Step 6: Final answer
    x = 3,212.59

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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.