Home / 2,911.50-4,362.98-1,812.52

Finding the Fourth Proportional to 2,911.50, 4,362.98 and 1,812.52

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Solution

The fourth proportional to 2,911.50, 4,362.98 and 1,812.52 is: 2,716.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.50 : 4,362.98 = 1,812.52 : x
  2. Step 2: Convert to fraction form
    2,911.50/4,362.98 = 1,812.52/x
  3. Step 3: Cross multiply
    2,911.50x = 4,362.98 × 1,812.52
  4. Step 4: Simplify right side
    2,911.50x = 7,907,988.51
  5. Step 5: Solve for x
    x = 7,907,988.51/2,911.50
  6. Step 6: Final answer
    x = 2,716.12

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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.