Home / 5,121.24-7,682.14-1,658.76

Finding the Fourth Proportional to 5,121.24, 7,682.14 and 1,658.76

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Solution

The fourth proportional to 5,121.24, 7,682.14 and 1,658.76 is: 2,488.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.24 : 7,682.14 = 1,658.76 : x
  2. Step 2: Convert to fraction form
    5,121.24/7,682.14 = 1,658.76/x
  3. Step 3: Cross multiply
    5,121.24x = 7,682.14 × 1,658.76
  4. Step 4: Simplify right side
    5,121.24x = 12,742,826.55
  5. Step 5: Solve for x
    x = 12,742,826.55/5,121.24
  6. Step 6: Final answer
    x = 2,488.23

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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.