Home / 7,065.27-9,750.20-3,878.87

Finding the Fourth Proportional to 7,065.27, 9,750.20 and 3,878.87

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Solution

The fourth proportional to 7,065.27, 9,750.20 and 3,878.87 is: 5,352.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.27 : 9,750.20 = 3,878.87 : x
  2. Step 2: Convert to fraction form
    7,065.27/9,750.20 = 3,878.87/x
  3. Step 3: Cross multiply
    7,065.27x = 9,750.20 × 3,878.87
  4. Step 4: Simplify right side
    7,065.27x = 37,819,758.27
  5. Step 5: Solve for x
    x = 37,819,758.27/7,065.27
  6. Step 6: Final answer
    x = 5,352.91

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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.