Home / 6,313.60-8,712-3,518.08

Finding the Fourth Proportional to 6,313.60, 8,712 and 3,518.08

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Solution

The fourth proportional to 6,313.60, 8,712 and 3,518.08 is: 4,854.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,313.60 : 8,712 = 3,518.08 : x
  2. Step 2: Convert to fraction form
    6,313.60/8,712 = 3,518.08/x
  3. Step 3: Cross multiply
    6,313.60x = 8,712 × 3,518.08
  4. Step 4: Simplify right side
    6,313.60x = 30,649,512.96
  5. Step 5: Solve for x
    x = 30,649,512.96/6,313.60
  6. Step 6: Final answer
    x = 4,854.52

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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.