Home / 7,451.84-10,287.60-5,220.56

Finding the Fourth Proportional to 7,451.84, 10,287.60 and 5,220.56

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Solution

The fourth proportional to 7,451.84, 10,287.60 and 5,220.56 is: 7,207.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,451.84 : 10,287.60 = 5,220.56 : x
  2. Step 2: Convert to fraction form
    7,451.84/10,287.60 = 5,220.56/x
  3. Step 3: Cross multiply
    7,451.84x = 10,287.60 × 5,220.56
  4. Step 4: Simplify right side
    7,451.84x = 53,707,033.06
  5. Step 5: Solve for x
    x = 53,707,033.06/7,451.84
  6. Step 6: Final answer
    x = 7,207.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.