Home / 6,289.04-8,678.36-3,636.61

Finding the Fourth Proportional to 6,289.04, 8,678.36 and 3,636.61

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Solution

The fourth proportional to 6,289.04, 8,678.36 and 3,636.61 is: 5,018.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.04 : 8,678.36 = 3,636.61 : x
  2. Step 2: Convert to fraction form
    6,289.04/8,678.36 = 3,636.61/x
  3. Step 3: Cross multiply
    6,289.04x = 8,678.36 × 3,636.61
  4. Step 4: Simplify right side
    6,289.04x = 31,559,798.16
  5. Step 5: Solve for x
    x = 31,559,798.16/6,289.04
  6. Step 6: Final answer
    x = 5,018.22

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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.