Home / 7,215.71-10,829.24-3,705.58

Finding the Fourth Proportional to 7,215.71, 10,829.24 and 3,705.58

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Solution

The fourth proportional to 7,215.71, 10,829.24 and 3,705.58 is: 5,561.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.71 : 10,829.24 = 3,705.58 : x
  2. Step 2: Convert to fraction form
    7,215.71/10,829.24 = 3,705.58/x
  3. Step 3: Cross multiply
    7,215.71x = 10,829.24 × 3,705.58
  4. Step 4: Simplify right side
    7,215.71x = 40,128,615.16
  5. Step 5: Solve for x
    x = 40,128,615.16/7,215.71
  6. Step 6: Final answer
    x = 5,561.28

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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.