Home / 6,129.22-8,460.06-3,612.79

Finding the Fourth Proportional to 6,129.22, 8,460.06 and 3,612.79

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Solution

The fourth proportional to 6,129.22, 8,460.06 and 3,612.79 is: 4,986.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,129.22 : 8,460.06 = 3,612.79 : x
  2. Step 2: Convert to fraction form
    6,129.22/8,460.06 = 3,612.79/x
  3. Step 3: Cross multiply
    6,129.22x = 8,460.06 × 3,612.79
  4. Step 4: Simplify right side
    6,129.22x = 30,564,420.17
  5. Step 5: Solve for x
    x = 30,564,420.17/6,129.22
  6. Step 6: Final answer
    x = 4,986.67

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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.