Home / 3,139.19-4,329.67-2,299.59

Finding the Fourth Proportional to 3,139.19, 4,329.67 and 2,299.59

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Solution

The fourth proportional to 3,139.19, 4,329.67 and 2,299.59 is: 3,171.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.19 : 4,329.67 = 2,299.59 : x
  2. Step 2: Convert to fraction form
    3,139.19/4,329.67 = 2,299.59/x
  3. Step 3: Cross multiply
    3,139.19x = 4,329.67 × 2,299.59
  4. Step 4: Simplify right side
    3,139.19x = 9,956,465.84
  5. Step 5: Solve for x
    x = 9,956,465.84/3,139.19
  6. Step 6: Final answer
    x = 3,171.67

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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.