Home / 5,145.64-7,718.86-1,683.24

Finding the Fourth Proportional to 5,145.64, 7,718.86 and 1,683.24

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Solution

The fourth proportional to 5,145.64, 7,718.86 and 1,683.24 is: 2,524.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.64 : 7,718.86 = 1,683.24 : x
  2. Step 2: Convert to fraction form
    5,145.64/7,718.86 = 1,683.24/x
  3. Step 3: Cross multiply
    5,145.64x = 7,718.86 × 1,683.24
  4. Step 4: Simplify right side
    5,145.64x = 12,992,693.91
  5. Step 5: Solve for x
    x = 12,992,693.91/5,145.64
  6. Step 6: Final answer
    x = 2,524.99

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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.