Home / 1,213-1,819.50-1,151.48

Finding the Fourth Proportional to 1,213, 1,819.50 and 1,151.48

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Solution

The fourth proportional to 1,213, 1,819.50 and 1,151.48 is: 1,727.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213 : 1,819.50 = 1,151.48 : x
  2. Step 2: Convert to fraction form
    1,213/1,819.50 = 1,151.48/x
  3. Step 3: Cross multiply
    1,213x = 1,819.50 × 1,151.48
  4. Step 4: Simplify right side
    1,213x = 2,095,117.86
  5. Step 5: Solve for x
    x = 2,095,117.86/1,213
  6. Step 6: Final answer
    x = 1,727.22

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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.