Home / 7,212.35-10,819.17-1,948.16

Finding the Fourth Proportional to 7,212.35, 10,819.17 and 1,948.16

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Solution

The fourth proportional to 7,212.35, 10,819.17 and 1,948.16 is: 2,922.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.35 : 10,819.17 = 1,948.16 : x
  2. Step 2: Convert to fraction form
    7,212.35/10,819.17 = 1,948.16/x
  3. Step 3: Cross multiply
    7,212.35x = 10,819.17 × 1,948.16
  4. Step 4: Simplify right side
    7,212.35x = 21,077,501.28
  5. Step 5: Solve for x
    x = 21,077,501.28/7,212.35
  6. Step 6: Final answer
    x = 2,922.42

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1.5x scale

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.