Home / 6,289.22-8,678.94-3,637.10

Finding the Fourth Proportional to 6,289.22, 8,678.94 and 3,637.10

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Solution

The fourth proportional to 6,289.22, 8,678.94 and 3,637.10 is: 5,019.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.22 : 8,678.94 = 3,637.10 : x
  2. Step 2: Convert to fraction form
    6,289.22/8,678.94 = 3,637.10/x
  3. Step 3: Cross multiply
    6,289.22x = 8,678.94 × 3,637.10
  4. Step 4: Simplify right side
    6,289.22x = 31,566,172.67
  5. Step 5: Solve for x
    x = 31,566,172.67/6,289.22
  6. Step 6: Final answer
    x = 5,019.09

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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.