Home / 7,141.10-10,707.60-3,240.68

Finding the Fourth Proportional to 7,141.10, 10,707.60 and 3,240.68

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Solution

The fourth proportional to 7,141.10, 10,707.60 and 3,240.68 is: 4,859.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.10 : 10,707.60 = 3,240.68 : x
  2. Step 2: Convert to fraction form
    7,141.10/10,707.60 = 3,240.68/x
  3. Step 3: Cross multiply
    7,141.10x = 10,707.60 × 3,240.68
  4. Step 4: Simplify right side
    7,141.10x = 34,699,905.17
  5. Step 5: Solve for x
    x = 34,699,905.17/7,141.10
  6. Step 6: Final answer
    x = 4,859.18

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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.