Home / 4,215.42-5,815.44-2,644.02

Finding the Fourth Proportional to 4,215.42, 5,815.44 and 2,644.02

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Solution

The fourth proportional to 4,215.42, 5,815.44 and 2,644.02 is: 3,647.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.42 : 5,815.44 = 2,644.02 : x
  2. Step 2: Convert to fraction form
    4,215.42/5,815.44 = 2,644.02/x
  3. Step 3: Cross multiply
    4,215.42x = 5,815.44 × 2,644.02
  4. Step 4: Simplify right side
    4,215.42x = 15,376,139.67
  5. Step 5: Solve for x
    x = 15,376,139.67/4,215.42
  6. Step 6: Final answer
    x = 3,647.59

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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.