Home / 5,102.43-7,653.75-1,639.68

Finding the Fourth Proportional to 5,102.43, 7,653.75 and 1,639.68

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Solution

The fourth proportional to 5,102.43, 7,653.75 and 1,639.68 is: 2,459.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.43 : 7,653.75 = 1,639.68 : x
  2. Step 2: Convert to fraction form
    5,102.43/7,653.75 = 1,639.68/x
  3. Step 3: Cross multiply
    5,102.43x = 7,653.75 × 1,639.68
  4. Step 4: Simplify right side
    5,102.43x = 12,549,700.80
  5. Step 5: Solve for x
    x = 12,549,700.80/5,102.43
  6. Step 6: Final answer
    x = 2,459.55

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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.