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Finding the Fourth Proportional to 7,479.96, 11,219.94 and 2,547.06

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Solution

The fourth proportional to 7,479.96, 11,219.94 and 2,547.06 is: 3,820.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.96 : 11,219.94 = 2,547.06 : x
  2. Step 2: Convert to fraction form
    7,479.96/11,219.94 = 2,547.06/x
  3. Step 3: Cross multiply
    7,479.96x = 11,219.94 × 2,547.06
  4. Step 4: Simplify right side
    7,479.96x = 28,577,860.38
  5. Step 5: Solve for x
    x = 28,577,860.38/7,479.96
  6. Step 6: Final answer
    x = 3,820.59

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