Home / 3,615.44-4,985.72-2,721.32

Finding the Fourth Proportional to 3,615.44, 4,985.72 and 2,721.32

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Solution

The fourth proportional to 3,615.44, 4,985.72 and 2,721.32 is: 3,752.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.44 : 4,985.72 = 2,721.32 : x
  2. Step 2: Convert to fraction form
    3,615.44/4,985.72 = 2,721.32/x
  3. Step 3: Cross multiply
    3,615.44x = 4,985.72 × 2,721.32
  4. Step 4: Simplify right side
    3,615.44x = 13,567,725.94
  5. Step 5: Solve for x
    x = 13,567,725.94/3,615.44
  6. Step 6: Final answer
    x = 3,752.72

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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.