Home / 3,784.65-5,220.86-2,211.83

Finding the Fourth Proportional to 3,784.65, 5,220.86 and 2,211.83

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Solution

The fourth proportional to 3,784.65, 5,220.86 and 2,211.83 is: 3,051.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.65 : 5,220.86 = 2,211.83 : x
  2. Step 2: Convert to fraction form
    3,784.65/5,220.86 = 2,211.83/x
  3. Step 3: Cross multiply
    3,784.65x = 5,220.86 × 2,211.83
  4. Step 4: Simplify right side
    3,784.65x = 11,547,637.19
  5. Step 5: Solve for x
    x = 11,547,637.19/3,784.65
  6. Step 6: Final answer
    x = 3,051.18

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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.