Home / 5,221.34-7,205.40-2,982.86

Finding the Fourth Proportional to 5,221.34, 7,205.40 and 2,982.86

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Solution

The fourth proportional to 5,221.34, 7,205.40 and 2,982.86 is: 4,116.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.34 : 7,205.40 = 2,982.86 : x
  2. Step 2: Convert to fraction form
    5,221.34/7,205.40 = 2,982.86/x
  3. Step 3: Cross multiply
    5,221.34x = 7,205.40 × 2,982.86
  4. Step 4: Simplify right side
    5,221.34x = 21,492,699.44
  5. Step 5: Solve for x
    x = 21,492,699.44/5,221.34
  6. Step 6: Final answer
    x = 4,116.32

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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.