Home / 3,565.12-4,919.76-1,971.88

Finding the Fourth Proportional to 3,565.12, 4,919.76 and 1,971.88

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Solution

The fourth proportional to 3,565.12, 4,919.76 and 1,971.88 is: 2,721.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,565.12 : 4,919.76 = 1,971.88 : x
  2. Step 2: Convert to fraction form
    3,565.12/4,919.76 = 1,971.88/x
  3. Step 3: Cross multiply
    3,565.12x = 4,919.76 × 1,971.88
  4. Step 4: Simplify right side
    3,565.12x = 9,701,176.35
  5. Step 5: Solve for x
    x = 9,701,176.35/3,565.12
  6. Step 6: Final answer
    x = 2,721.14

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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.