Home / 5,122.26-7,683.54-1,424.76

Finding the Fourth Proportional to 5,122.26, 7,683.54 and 1,424.76

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Solution

The fourth proportional to 5,122.26, 7,683.54 and 1,424.76 is: 2,137.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.26 : 7,683.54 = 1,424.76 : x
  2. Step 2: Convert to fraction form
    5,122.26/7,683.54 = 1,424.76/x
  3. Step 3: Cross multiply
    5,122.26x = 7,683.54 × 1,424.76
  4. Step 4: Simplify right side
    5,122.26x = 10,947,200.45
  5. Step 5: Solve for x
    x = 10,947,200.45/5,122.26
  6. Step 6: Final answer
    x = 2,137.18

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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.