Home / 7,215.73-10,817.45-3,705.60

Finding the Fourth Proportional to 7,215.73, 10,817.45 and 3,705.60

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Solution

The fourth proportional to 7,215.73, 10,817.45 and 3,705.60 is: 5,555.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.73 : 10,817.45 = 3,705.60 : x
  2. Step 2: Convert to fraction form
    7,215.73/10,817.45 = 3,705.60/x
  3. Step 3: Cross multiply
    7,215.73x = 10,817.45 × 3,705.60
  4. Step 4: Simplify right side
    7,215.73x = 40,085,117.81
  5. Step 5: Solve for x
    x = 40,085,117.81/7,215.73
  6. Step 6: Final answer
    x = 5,555.24

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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.