Home / 5,120.64-7,683.36-3,044.76

Finding the Fourth Proportional to 5,120.64, 7,683.36 and 3,044.76

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Solution

The fourth proportional to 5,120.64, 7,683.36 and 3,044.76 is: 4,568.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.64 : 7,683.36 = 3,044.76 : x
  2. Step 2: Convert to fraction form
    5,120.64/7,683.36 = 3,044.76/x
  3. Step 3: Cross multiply
    5,120.64x = 7,683.36 × 3,044.76
  4. Step 4: Simplify right side
    5,120.64x = 23,393,987.19
  5. Step 5: Solve for x
    x = 23,393,987.19/5,120.64
  6. Step 6: Final answer
    x = 4,568.57

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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.