Home / 6,717.80-10,068.60-3,429.20

Finding the Fourth Proportional to 6,717.80, 10,068.60 and 3,429.20

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Solution

The fourth proportional to 6,717.80, 10,068.60 and 3,429.20 is: 5,139.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,717.80 : 10,068.60 = 3,429.20 : x
  2. Step 2: Convert to fraction form
    6,717.80/10,068.60 = 3,429.20/x
  3. Step 3: Cross multiply
    6,717.80x = 10,068.60 × 3,429.20
  4. Step 4: Simplify right side
    6,717.80x = 34,527,243.12
  5. Step 5: Solve for x
    x = 34,527,243.12/6,717.80
  6. Step 6: Final answer
    x = 5,139.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.