Home / 5,156.96-7,732.50-1,646.28

Finding the Fourth Proportional to 5,156.96, 7,732.50 and 1,646.28

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Solution

The fourth proportional to 5,156.96, 7,732.50 and 1,646.28 is: 2,468.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.96 : 7,732.50 = 1,646.28 : x
  2. Step 2: Convert to fraction form
    5,156.96/7,732.50 = 1,646.28/x
  3. Step 3: Cross multiply
    5,156.96x = 7,732.50 × 1,646.28
  4. Step 4: Simplify right side
    5,156.96x = 12,729,860.10
  5. Step 5: Solve for x
    x = 12,729,860.10/5,156.96
  6. Step 6: Final answer
    x = 2,468.48

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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.