Home / 7,212.42-10,812.24-3,700.49

Finding the Fourth Proportional to 7,212.42, 10,812.24 and 3,700.49

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Solution

The fourth proportional to 7,212.42, 10,812.24 and 3,700.49 is: 5,547.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.42 : 10,812.24 = 3,700.49 : x
  2. Step 2: Convert to fraction form
    7,212.42/10,812.24 = 3,700.49/x
  3. Step 3: Cross multiply
    7,212.42x = 10,812.24 × 3,700.49
  4. Step 4: Simplify right side
    7,212.42x = 40,010,531.94
  5. Step 5: Solve for x
    x = 40,010,531.94/7,212.42
  6. Step 6: Final answer
    x = 5,547.45

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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.