Home / 6,289.92-8,680.48-3,637.68

Finding the Fourth Proportional to 6,289.92, 8,680.48 and 3,637.68

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Solution

The fourth proportional to 6,289.92, 8,680.48 and 3,637.68 is: 5,020.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.92 : 8,680.48 = 3,637.68 : x
  2. Step 2: Convert to fraction form
    6,289.92/8,680.48 = 3,637.68/x
  3. Step 3: Cross multiply
    6,289.92x = 8,680.48 × 3,637.68
  4. Step 4: Simplify right side
    6,289.92x = 31,576,808.49
  5. Step 5: Solve for x
    x = 31,576,808.49/6,289.92
  6. Step 6: Final answer
    x = 5,020.22

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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.