Home / 6,287.74-9,420.71-3,817.34

Finding the Fourth Proportional to 6,287.74, 9,420.71 and 3,817.34

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Solution

The fourth proportional to 6,287.74, 9,420.71 and 3,817.34 is: 5,719.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287.74 : 9,420.71 = 3,817.34 : x
  2. Step 2: Convert to fraction form
    6,287.74/9,420.71 = 3,817.34/x
  3. Step 3: Cross multiply
    6,287.74x = 9,420.71 × 3,817.34
  4. Step 4: Simplify right side
    6,287.74x = 35,962,034.02
  5. Step 5: Solve for x
    x = 35,962,034.02/6,287.74
  6. Step 6: Final answer
    x = 5,719.39

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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.