Home / 4,125.36-5,686.38-3,239.76

Finding the Fourth Proportional to 4,125.36, 5,686.38 and 3,239.76

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Solution

The fourth proportional to 4,125.36, 5,686.38 and 3,239.76 is: 4,465.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,125.36 : 5,686.38 = 3,239.76 : x
  2. Step 2: Convert to fraction form
    4,125.36/5,686.38 = 3,239.76/x
  3. Step 3: Cross multiply
    4,125.36x = 5,686.38 × 3,239.76
  4. Step 4: Simplify right side
    4,125.36x = 18,422,506.47
  5. Step 5: Solve for x
    x = 18,422,506.47/4,125.36
  6. Step 6: Final answer
    x = 4,465.67

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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.