Home / 5,207.86-7,185.45-3,320.02

Finding the Fourth Proportional to 5,207.86, 7,185.45 and 3,320.02

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Solution

The fourth proportional to 5,207.86, 7,185.45 and 3,320.02 is: 4,580.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.86 : 7,185.45 = 3,320.02 : x
  2. Step 2: Convert to fraction form
    5,207.86/7,185.45 = 3,320.02/x
  3. Step 3: Cross multiply
    5,207.86x = 7,185.45 × 3,320.02
  4. Step 4: Simplify right side
    5,207.86x = 23,855,837.71
  5. Step 5: Solve for x
    x = 23,855,837.71/5,207.86
  6. Step 6: Final answer
    x = 4,580.74

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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.