Home / 7,280.88-10,919.40-2,085.52

Finding the Fourth Proportional to 7,280.88, 10,919.40 and 2,085.52

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Solution

The fourth proportional to 7,280.88, 10,919.40 and 2,085.52 is: 3,127.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.88 : 10,919.40 = 2,085.52 : x
  2. Step 2: Convert to fraction form
    7,280.88/10,919.40 = 2,085.52/x
  3. Step 3: Cross multiply
    7,280.88x = 10,919.40 × 2,085.52
  4. Step 4: Simplify right side
    7,280.88x = 22,772,627.09
  5. Step 5: Solve for x
    x = 22,772,627.09/7,280.88
  6. Step 6: Final answer
    x = 3,127.73

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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.