Home / 4,985.79-6,879.18-3,397.67

Finding the Fourth Proportional to 4,985.79, 6,879.18 and 3,397.67

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Solution

The fourth proportional to 4,985.79, 6,879.18 and 3,397.67 is: 4,687.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.79 : 6,879.18 = 3,397.67 : x
  2. Step 2: Convert to fraction form
    4,985.79/6,879.18 = 3,397.67/x
  3. Step 3: Cross multiply
    4,985.79x = 6,879.18 × 3,397.67
  4. Step 4: Simplify right side
    4,985.79x = 23,373,187.89
  5. Step 5: Solve for x
    x = 23,373,187.89/4,985.79
  6. Step 6: Final answer
    x = 4,687.96

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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.