Home / 7,088.72-9,781.96-4,436

Finding the Fourth Proportional to 7,088.72, 9,781.96 and 4,436

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Solution

The fourth proportional to 7,088.72, 9,781.96 and 4,436 is: 6,121.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,088.72 : 9,781.96 = 4,436 : x
  2. Step 2: Convert to fraction form
    7,088.72/9,781.96 = 4,436/x
  3. Step 3: Cross multiply
    7,088.72x = 9,781.96 × 4,436
  4. Step 4: Simplify right side
    7,088.72x = 43,392,774.56
  5. Step 5: Solve for x
    x = 43,392,774.56/7,088.72
  6. Step 6: Final answer
    x = 6,121.38

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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.