Home / 7,492.45-11,240.49-2,812.51

Finding the Fourth Proportional to 7,492.45, 11,240.49 and 2,812.51

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Solution

The fourth proportional to 7,492.45, 11,240.49 and 2,812.51 is: 4,219.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,492.45 : 11,240.49 = 2,812.51 : x
  2. Step 2: Convert to fraction form
    7,492.45/11,240.49 = 2,812.51/x
  3. Step 3: Cross multiply
    7,492.45x = 11,240.49 × 2,812.51
  4. Step 4: Simplify right side
    7,492.45x = 31,613,976.47
  5. Step 5: Solve for x
    x = 31,613,976.47/7,492.45
  6. Step 6: Final answer
    x = 4,219.44

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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.