Home / 2,931.26-4,396.23-851.27

Finding the Fourth Proportional to 2,931.26, 4,396.23 and 851.27

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Solution

The fourth proportional to 2,931.26, 4,396.23 and 851.27 is: 1,276.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.26 : 4,396.23 = 851.27 : x
  2. Step 2: Convert to fraction form
    2,931.26/4,396.23 = 851.27/x
  3. Step 3: Cross multiply
    2,931.26x = 4,396.23 × 851.27
  4. Step 4: Simplify right side
    2,931.26x = 3,742,378.71
  5. Step 5: Solve for x
    x = 3,742,378.71/2,931.26
  6. Step 6: Final answer
    x = 1,276.71

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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.