Home / 5,211.05-7,191.63-3,439.58

Finding the Fourth Proportional to 5,211.05, 7,191.63 and 3,439.58

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Solution

The fourth proportional to 5,211.05, 7,191.63 and 3,439.58 is: 4,746.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.05 : 7,191.63 = 3,439.58 : x
  2. Step 2: Convert to fraction form
    5,211.05/7,191.63 = 3,439.58/x
  3. Step 3: Cross multiply
    5,211.05x = 7,191.63 × 3,439.58
  4. Step 4: Simplify right side
    5,211.05x = 24,736,186.72
  5. Step 5: Solve for x
    x = 24,736,186.72/5,211.05
  6. Step 6: Final answer
    x = 4,746.87

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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.