Home / 7,439.61-11,161.04-2,509.35

Finding the Fourth Proportional to 7,439.61, 11,161.04 and 2,509.35

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Solution

The fourth proportional to 7,439.61, 11,161.04 and 2,509.35 is: 3,764.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.61 : 11,161.04 = 2,509.35 : x
  2. Step 2: Convert to fraction form
    7,439.61/11,161.04 = 2,509.35/x
  3. Step 3: Cross multiply
    7,439.61x = 11,161.04 × 2,509.35
  4. Step 4: Simplify right side
    7,439.61x = 28,006,943.18
  5. Step 5: Solve for x
    x = 28,006,943.18/7,439.61
  6. Step 6: Final answer
    x = 3,764.57

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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.