Home / 7,087.56-10,631.49-3,390.18

Finding the Fourth Proportional to 7,087.56, 10,631.49 and 3,390.18

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Solution

The fourth proportional to 7,087.56, 10,631.49 and 3,390.18 is: 5,085.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.56 : 10,631.49 = 3,390.18 : x
  2. Step 2: Convert to fraction form
    7,087.56/10,631.49 = 3,390.18/x
  3. Step 3: Cross multiply
    7,087.56x = 10,631.49 × 3,390.18
  4. Step 4: Simplify right side
    7,087.56x = 36,042,664.77
  5. Step 5: Solve for x
    x = 36,042,664.77/7,087.56
  6. Step 6: Final answer
    x = 5,085.34

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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.