Home / 6,119.12-8,445.69-3,729.87

Finding the Fourth Proportional to 6,119.12, 8,445.69 and 3,729.87

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Solution

The fourth proportional to 6,119.12, 8,445.69 and 3,729.87 is: 5,148.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,119.12 : 8,445.69 = 3,729.87 : x
  2. Step 2: Convert to fraction form
    6,119.12/8,445.69 = 3,729.87/x
  3. Step 3: Cross multiply
    6,119.12x = 8,445.69 × 3,729.87
  4. Step 4: Simplify right side
    6,119.12x = 31,501,325.76
  5. Step 5: Solve for x
    x = 31,501,325.76/6,119.12
  6. Step 6: Final answer
    x = 5,148.02

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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.