Home / 3,565.13-4,919.90-1,971.89

Finding the Fourth Proportional to 3,565.13, 4,919.90 and 1,971.89

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Solution

The fourth proportional to 3,565.13, 4,919.90 and 1,971.89 is: 2,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,565.13 : 4,919.90 = 1,971.89 : x
  2. Step 2: Convert to fraction form
    3,565.13/4,919.90 = 1,971.89/x
  3. Step 3: Cross multiply
    3,565.13x = 4,919.90 × 1,971.89
  4. Step 4: Simplify right side
    3,565.13x = 9,701,491.75
  5. Step 5: Solve for x
    x = 9,701,491.75/3,565.13
  6. Step 6: Final answer
    x = 2,721.22

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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.