Home / 7,474.79-11,212.08-2,547.86

Finding the Fourth Proportional to 7,474.79, 11,212.08 and 2,547.86

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Solution

The fourth proportional to 7,474.79, 11,212.08 and 2,547.86 is: 3,821.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.79 : 11,212.08 = 2,547.86 : x
  2. Step 2: Convert to fraction form
    7,474.79/11,212.08 = 2,547.86/x
  3. Step 3: Cross multiply
    7,474.79x = 11,212.08 × 2,547.86
  4. Step 4: Simplify right side
    7,474.79x = 28,566,810.15
  5. Step 5: Solve for x
    x = 28,566,810.15/7,474.79
  6. Step 6: Final answer
    x = 3,821.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.